non yellowing yacht varnish

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The Best Marine Varnishes

Written by J. Harvey / Fact checked by S. Numbers

Let’s face it, we don’t give as much credit to the almost perfect combination of boats and varnishes. After all, vessels aren’t exactly cheap. They aren’t immune to deterioration as well. If there’s one solid way for you to preserve the life of your investment and even take her beauty up a notch, wouldn’t you seize it?

For my part, I can wholeheartedly say that these varnishes are great investments, especially if we’re talking about the best marine varnish. These concoctions go beyond their practical benefits, lending anything made of wood with a nice finish that only unlocks and magnifies their natural exquisiteness.

I can say as much for the products I’ve featured here. They have given me noteworthy, if not outstanding, results that make the others I’ve tried in my more than ten years of boating and fishing pale in comparison.

• Great finish
• Easy to use
• Great value for money

• Superb satin finish
• High gloss protection
• Very versatile varnish

• Easy to apply
• Excellent UV protection

Table of Contents

1. Rust-Oleum 207008 Marine Spar Varnish

2. totalboat gleam marine spar varnish, 3. epifanes cv.500 clear varnish, 4. mccloskey 7509 man o’war spar marine varnish, 5. totalboat 482869 lust marine varnish, 6. epifanes wfm.500 wood finish matte, 7. minwax 63200444 helmsman spar urethane, 8. interlux iva316/qt cetol natural teak varnish, 9. mccloskey 7505 man o’ war spar varnish, 10. pettit marine paint flagship varnish 2015, 11. system three 1855s16 marine spar varnish, 12. duralux m738-1 spar varnish, 13. old masters 153617 spar marine varnish, factors to consider when choosing marine varnish, what is the best marine varnish, what is the difference between spar varnish and marine barnish, how do you apply marine varnish to wood, how long will marine varnish last, is marine spar varnish waterproof, best marine varnish reviews.

If I’m going for all-around reliability and protection from sun and moisture damage, I’d choose this varnish in a heartbeat.

This is my go-to varnish for anything wood found in my sailboat. Whether it’s furniture or railing or sometimes even the bow, I often get the kind of maintainability I want every time I use this. The finish is no less attractive and only gets glittery over time in a number of my past applications.

Thinned up to around 30%, it dries quickly enough to apply multiple coats in a day. Sometimes I go for as low as 20%, down to even 5%. It’s because thinning too much does tend to backfire and lead to the varnish taking a long time to dry. It’s easy to use with everything considered.

If you want the best results, I’ve found that using a fresh foam brush with every coat would result in optimal smoothness. It may seem like a waste, buying multiple brushes, but the results are unrivaled, to say the least. I’ve had applications that lasted for a good 3 years before I needed to refinish them.

• Excellent UV and water protection
• More affordable but with high-end results
• Low shelf life

This varnish smoothly combines ease of use, beautiful finishes, and above-average durability. The winning formula for successful marine finishes for wood, in short.

This varnish is versatile in that it leaves plenty of routes open for you to take. For one, I like that they give you plenty of freedom when choosing the shine you want. It’s also available in different sizes, so I always get to buy only the proportions I deem fit for a specific project.

I have to be partial to the satin finish, though, since it delivers the exquisite luster I like to see in my indoor boat furniture and fixtures like railings. However, I always make sure to apply a high-gloss varnish if I’m working on anything that has to be exposed to the sun for long hours. That being said, I like that this product gives you both satin and gloss options.

I make sure to apply the high-gloss varnish as a topcoat, and I’ve gotten excellent results, mostly 1 to 2 years of unblemished finishes, with this practice. Sometimes, it’s shorter than that, especially on wooden areas that are more exposed to the elements. Yet, it’s protection you normally expect and can get from high-gloss varnish. In addition, it’s a varnish that’s also noticeably on the thin side, so I kind of get that it wears away faster than thicker varieties.

• Uncomplicated to apply
• Has multiple sheen and size options
• Not as durable as others

Another safe option, Epifanes marine spar varnish is anything but average with its status as a crowd favorite. Expect superior finish and durability if you choose this.

This varnish easily earns a spot here, considering its unchanging and undeniably positive reputation among boaters. Simply put, it’s hard to fault because of the wonderful results it can bring. The shiny, attractive gloss that has the Epifanes trademark is rarely surpassed by other marine-grade varnishes in my opinion.

What’s equally neat is that it’s not difficult to apply. You don’t really need to sand it with every coat, unlike the majority of other brands out there, but I still suggest you do it, especially in the later coatings. I recommend using marine spirits as a thinner with a 2:1 ratio, and take the time to pour it through a strainer to guarantee a smooth finish. At best, you’ll have to set 5 to 7 days of gradual coating to get the kind of attractive finish you want; and I mean capital-A attractive.

As in other great exterior varnishes, this product is an example to follow when imparting UV protection. At least, that’s what I think is primarily responsible for the excellent finish and the overall durability. I use this as much on my sailboat’s wood portions above the waterline and furniture as well as furnishings in my home, and the finish often lasts for 2 years on average.

• Amazing shine and finish
• Takes a while to dry
• Short shelf life

McCloskey’s Man O’War spar varnish is durable, to an almost no-brainer degree. It’s what I buy if I want to get the best out of what spar varnish offers to the average boater.

Despite its relatively hard finish, spar varnish tends to wear out faster than urethane. It’s a natural thing, so I won’t bother to list it as a con. You can’t mimic the deep amber tint, caramelization, and versatility of good old spar varnish, and this brand delivers no less than that trio of perks.

If I’m going to name a worthy brand representative of spar varnishes, I’d promptly pick this one. It adheres excellently to any kind of wood, so I generously slather any wooden fixture in my boat with this once I get a hold of a bottle.

While it’s easy to use, you’d better be prepared to invest time working with this varnish. I use mineral spirits for thinning, and I make sure to apply thin coats, starting from the middle, using a mini roller and a brush, mohair and ox hair respectively. I sand in between coats, and overall it takes time since it dries slowly.

The durability stems a lot from the outstanding UV protection. My sailboat’s wooden bow that has this finish has been battered by rain a good number of times already, and it’s still holding up after a year since the initial application. Since it’s effortless to apply, I just sand and recoat every once in a while.

• Outstanding UV protection
• Adheres to most types of wood
• Classic, eye-catching spar varnish finish
• Slow-drying
• Limited availability

TotalBoat is a household name in the marine industry as far as paints and varnishes go. This is the brand’s best offering if we’re going to consider fundamental factors like durability, shine, and value for money.

I need to stress outright that this varnish is extra thick, almost honey-like. If you don’t thin it out to at least 50%, you’ll only end up grappling with it to less than desirable results. It’s not exactly beginner-friendly with that considered, but it does pay off since you get optimal protection and the kind of shine any boat owner would be proud of.

Speaking of the finish, it begins to shine through once you hit the one-year mark. At least, that’s what I get from most of the vessels and furniture I apply it to. I can say that it’s smooth sailing once you take the time to know the right consistency.

I often use a roller and apply 5 coats then do a recoat after 2 hours in a whole day. Ideally, the last two coats should only be thinned by about 10% only. It might get tricky applying it then but, trust me, you’ll get the hang of it.

I get the results I want within a day or two — or more at times during less than optimal humidities and temperatures. Even so, that’s obviously quicker than handling traditional varnish, which takes weeks to settle. I do acknowledge the thinner’s role in helping with the drying time.

• Excellent shine and finish
• Proven durability
• Becomes easy to use with practice
• Quick-drying

If we’re talking about top-of-the-line, marine-grade durability, this one deserves to be called the best marine wood finish.

This is my favorite to use on teak because of its proven waterproof capabilities and the fact that its satin finish has just the right amount of sheen, for me, at least. It brings out the beauty of the teak and almost any wood I apply it to, for that matter, and this is coming from someone who has tried numerous marine-grade varnish before. I’ve had furniture that managed to maintain its finish for an impressive 5 years with the help of this varnish.

It’s a bit of a challenge to apply. It actually flows well enough as it is, and I rarely have to thin it with every application. However, you have to make sure that you apply it evenly with every coat and oftentimes as quickly as possible. Once I get patchy and bubbly results, that’s the only time I thin it, and I sand after the first coat, totaling up to 3 coats on average. It will dry more slowly if I thin it, though.

• Excellent durability
• Nice satin finish
• Flows smoothly without thinning
• Brings out the beauty of the wood extremely well
• Fairly cost-effective
• Not beginner-friendly

Though not marine-grade, Minwax has proven to be just as durable as many products with that label. It’s very easy to use and delivers just the right amount of shine.

I often use this on my sailboat’s furniture, and if left with no other options, even the wooden exterior of the hull and bow. It goes well with canoes, but I only tend to apply it on the ribs, rudder, and planking. While not marine-grade, it’s great for outdoor furniture, and, to me, that’s always a good sign of heavy-duty UV protection.

If I want to reinforce the protection, I only need to apply more layers, 4 coats at most but not less than 2. I’ve only used it on oak-made fixtures, though, and I get the longevity and finish I want with that kind of simple setup. The varnish lasts up to 1 to 2 years before recoating becomes necessary, with minor peeling only appearing after a year based on my experience.

I like that they give you plenty of options with regards to sheen and container sizes. I prefer satin for my interior furniture. I once made the mistake of not mixing it well and got a result that’s almost similar to high gloss. To avoid this, you need to make sure you mix it for a good 5 minutes and scrape the sides and bottoms of the can as you do so. This guarantees the soft shine you’re aiming for.

• Plenty of sheen and size options
• Decent durability
• Dries quickly
• Not exactly marine-grade

This varnish earns my thumbs up with the kind of inimitable finish it can deliver and its relatively easy application.

This has since become my favorite varnish on teak fixtures when I tried it out 2 years ago. This is because of the immense difference it makes in the way it lends my pulpit or anything made of teak with a sophisticated, good-as-new finish. It’s not overly glossy, which I attribute to the “natural teak” claim, and only darkens the wood a tad so it will still maintain its natural hues.

I’m glad it didn’t cause any yellowing, and after my second application, I can still say the same. It has a runny consistency that merits forgoing thinning on the first coat. I like to use a brush when applying it to have better control over coverage, which is great enough as it is, and all I can say is that I’ll apply this to my boat’s bow and rails the moment they start showing signs of wear.

Nonetheless, it would be pushing it to say that it’s as durable as the other varnishes here. It only took a year before my bow showed signs of peels and cracks. However, after I applied a single maintenance coat on the entire thing, I found that it limited or delayed the damage since I’ve yet to see signs again after doing a recoating. That being said, I suggest applying a fresh layer at least once a year to make the most out of this marine varnish for boats.

• Outstanding finish
• No sanding and thinning required in most cases
• Good coverage
• Minimal darkening
• Well worth the money
• A bit pricey
• Not durable

Budget-friendly, reliable, and just as good as other solid brands, this McCluskey varnish is a must for anyone choosing to go for value for money all the way.

The fact that this varnish can give you outstanding satin finishes and superb durability without going overboard in cost should give you a ready hint why a lot of boaters are shifting to this product. When I say superb durability, I mean thick coatings that you’ll be confident will last for years.

In my case, the minimum is 3 years on all my wood projects, boat bows, railings, and furniture included. You may start seeing peels and scratches here and there, as evidenced by the 7-year-old canoe that I refurbished 3 years ago. But, to me, it’s still none the worse for wear and nothing a minor recoating job won’t remedy.

The finish is not unlike the ones I get from the other varnishes mentioned here. It accentuates the natural color and look of the wood, and I’m saying this for redwood, teak, and light oak, which are the types I’ve applied it to. It dries in a day like most spar varnishes and typically doesn’t need to be thinned, though sanding is ideal per coat.

Incidentally, I need to underline the fact that this varnish is one of the few that doesn’t skin over in the can after you’ve stored what’s left of it. At least, that’s what I can say for most of the cans I’ve purchased and stored, with about a third of the can full in a year.

• Works well for most types of wood
• Superior durability
• Doesn’t skin like other varnishes
• More reasonably priced than other brands

This rarely figures in marine varnish review posts, and that’s unfortunate considering it’s another top-quality marine varnish that doesn’t yellow, imparts a glossy and thick appearance, and superb UV protection.

Usually, I use this as a general-purpose varnish for the teak and cedar parts and fixtures of my one and only yacht. It gives a deep-colored, thick, glossy, grainy, and smooth finish that I can’t get enough of. It doesn’t yellow at all, probably because of the UV additive used, at least, partly. Anyway, this is one positive quality I always like from any alkyd varnish that is done right.

I prefer to spray this one, following the 20% thinning guideline. Spraying shortens the time for full coverage. I sand lightly between coats using 220-grit sandpaper, and by and large, I only need 3 to 4 coats to get the beautiful finish I described above. It takes almost a whole day to dry, but I don’t mind since I get quality results.

As for durability, I can safely say it’s UV stable. I often leave a couple of chairs and tables out on the deck if the weather’s great, oftentimes, for an entire day. Besides a few scratches in some parts, which aren’t UV-related, they haven’t peeled yet and have maintained their shininess after 2 years since application. I can say the same for the yacht’s teak pulpit.

• Doesn’t yellow
• Superb UV protection
• Proven gloss retention

To me, this is the best boat varnish if we’re only considering durability. It also earns a ready checkmark in protection and attractive finish, making it nothing short of tough to beat.

As far as durability is concerned, the longest that I’ve seen this last without undergoing any kind of major peeling or cracking is close to 3 and a half years. It was on my favorite canoe, which I use fairly regularly for freshwater fishing. 3 years is the maximum for any exterior wood varnish for me, and without a doubt, many boaters would say the same.

I attribute most of the longevity to the excellent water and UV protection. My canoe has borne the brunt of rain and water splashes over the years. I can say the same when I expose it to extensive sunlight exposure when I go fishing in Lake Erie. Top-tier durability in my book.

I sometimes use a thinner with this varnish, but I’ve found that you don’t really need to thin it if you use an HVLP spray gun. Sure, it takes a while to dry and you have to be extra careful, but I’ll take that any day if I get to enjoy these perks and results consistently.

• Outstanding durability
• Relatively attractive finish
• Easy to apply with a sprayer
• Comes in gloss and satin varieties
• Dries slowly without a thinner

A true gem of a find, Duralux exceeded my expectations with its durability and versatility.

In almost any kind of marine varnish for exterior doors, durability and protection immediately go well together. This spar varnish proves it doesn’t belong on the back burner by delivering both. One of my canoes that I applied this on is still going strong for more than a year, and that’s a quality not a lot of products can boast of.

I’ve had varnish that didn’t take more than a month to start peeling and cracking. That’s after a fresh application, mind you, and, yes, I follow brand recommendations to a tee if I haven’t discovered a better way to apply it. This varnish has kept my other canoes shiny every time so I deemed it deserves the spotlight.

Moreover, it doesn’t yellow over time, unlike some clear varnish I’ve used before. You may argue that there’s a lot of variables when it comes to varnish yellowing, like sanding and possible chemicals it can react to. I’m not sure whether this is spar polyurethane, but I’m betting it is since that’s the only type of varnish I’ve used that doesn’t give me the yellowing effect even with minimal to no sanding.

• Satisfactory finish
• Uncomplicated application
• Doesn’t yellow over time
• Doesn’t dry quickly

Old Masters’s varnish shouldn’t be overlooked for its conveniences and quality that only a few top-tier varnish brands can bravely claim they can deliver every time.

This is among the lesser-known spar varnishes that don’t yellow even after a long time has passed. The canoe that I refurbished 3 years ago would prove as much, as it’s still holding up well, surprisingly if I might add. To be honest, this was a second option when I bought it as I didn’t have TotalBoat and McCluskey varnishes available back when I did the finishing job.

I was pleasantly surprised by how things turned out. I followed the instructions and stirred it well. It’s just the right kind of thick, to the point that I don’t have to thin it when applying with a brush or roller. I do have to thoroughly sand and clean the surface first, and it evens out nicely with every coating.

It dries quickly enough for me to apply a second coat in a single day, making me think it’s an exception among oil-based spar varnishes. At best, I give an allowance of 8 to 10 hours before brushing the next coat. Obviously, that’s a time-saving perk I’ll take any day.

It doesn’t produce a yellowing effect, even when applied to parts of my canoe that are regularly exposed to heat, sunlight, and the elements. That’s noteworthy considering it’s a clear varnish. I even have to say that the slightly weathered look it has gotten lends it a charm that most boaters would appreciate.

• Easy application
• Decent durability and finish
• Doesn’t yellow with age
• Limited to small pint-sized cans

Based on my experience, there are many “safe” marine varnish options out there. This only means you’re likely to not run out of beginner-friendly brands and can guarantee high-quality results at the same time. Whether it’s high-gloss or satin, all spar varnishes are easy to apply over new wood or previously coated surfaces. Marine varnish is also not partial to any type of wood and can accommodate those commonly found aboard or form part of a vessel, like teak, redwood, oak, etc.

However, that doesn’t completely discount the need to pay attention to certain factors when making your decision. These are usually the ones I make a note of when planning to start a varnishing job.

• Durability – I’ve found that marine-grade polyurethane is hard to equal when it comes to finishes that are guaranteed to last. Most spar varnishes pale in comparison to their urethane counterparts in this regard because polyurethane tends to last for a minimum of 3 years before re-coats are needed, based on my experience. This is why they’re great options as a marine varnish for outdoor furniture.

For spar varnishes, I’ve had finishes that only lasted a year or even less. At best, these two offer equally potent UV protection, waterproof benefits, and even resistance to scratching.

• Drying Time – Are you working with a severely limited timeframe and need to complete coats within a day? You may want to consider varnishes that dry faster like water-based spar urethane since these can dry in only a few hours. Most spar varnishes require a whole day of waiting to apply coats, assuming climate conditions are optimal.
• Ease of Use – To ensure you won’t end up throwing away your money, don’t ignore how easy or hard a specific varnish is typically applied.
• Shelf Life – It won’t hurt to pay attention to how long a specific can of varnish will last while in storage.
• Gloss – This is admittedly a largely subjective factor, but if you’re opting for high-gloss varnish, it’s almost always the one with the best durability. However, do you like your wood to be extra shiny? There are semi-gloss and satin finishes that are just as attractive, if not more, especially when used on anything wood that is below deck.

We also need to discuss the possibility of a varnish yellowing or darkening the wood that it is applied to. Sometimes, the darkening could be due to the UV additive or tint used; thus, making it unavoidable unless you opt for a different varnish brand altogether.

As for yellowing, there are ways to avoid it. I shall discuss it below, but sometimes, it’s due to the actual product as well, especially if they are clear, alkyd, or oil-based. It’s not an absolute thing, though, and there are products that prove to be exceptions to this rule.

You’ll hear a lot of experienced boaters recommending brands like Epifanes, TotalBoat, McCloskey, and Rust-Oleum. I agree with them because, to me, these brands can easily meet the standards of high-quality marine varnish. Each one has qualities where they serve to shine better, and the reviews I outlined above should give you a good idea about what they are.

Nonetheless, I’m not completely discounting the other brands I included here. I daresay that they’re just as good as those top-dog brands, especially in essential factors like durability and a long-lasting aesthetically appealing finish. Moreover, I find them to be valuable substitutes if any go-to brand happens to be unavailable and won’t even hesitate to pick them as the main option based on certain requirements of a finishing job.

Incidentally, you may have noticed that I didn’t include ease of cleaning when discussing these brands. That’s because most, if not all, of them are very easy to clean for me. At least, for the almost uniform smooth finishes that I get out of them.

There’s not much, really. When boaters use the term “spar varnish”, chances are, they’re also automatically referring to marine varnish. You can also see this in how brands usually label their products in online stores, like Sherwin Williams marine spar varnish or TotalBoat gleam marine spar varnish, to cite a few examples. If you’re using spar varnish, it’s almost always marine-grade.

Both terms give the ready connotation of finishes that provide heavy-duty protection against the harsh elements usually involved when boating, fishing, and cruising. You’ll find plenty of oil-based spar varnishes (i.e. tung oil, alkyd resin, etc.) that are imbued with additives that serve to accentuate the natural beauty of the wood, as well as solvents and other chemicals that promote fast drying and add UV protection.

Since certain varnishes have different components or are more natural or synthetic, it’s best to stick to the manufacturer’s instructions when applying any kind of varnish. However, we can’t deny that most projects share a few essential guidelines, such as the following:

• Preparation usually entails sanding between coats. The most ideal to use for this purpose is 180 to 220-grit sandpaper or even a Scotchbrite pad will do sometimes. Take note that some varnish products can do without sanding, especially for the initial coat. But, this would still depend on whether you’re applying it to a bare wooden surface or if it’s been previously coated before. If it’s the latter, then you’d most likely need to sand it first.
• Clean the dust that forms after sanding using a clean rag. I wipe it down further with a tack rag to ensure no dust or debris would still be present the moment I start applying coats.
• As for temperature and humidity, it’s best to apply any kind of marine varnish if the temperatures during the entire day don’t go above 80 degrees Fahrenheit. Humidity should be 50 to 60% or even slightly lower than that. I found that the smartest route to take is to be patient and wait for the right climate before going ahead with a project, especially if you know that it will take a number of days to finish.
• Thinning depends a lot on the product. If it’s too thick, it’s often necessary to do this, even if the brand doesn’t mention it in the instructions. The safest route for this is to follow a 2:1 varnish to thinner ratio. Mineral spirits are recommended.
• I also recommend taking the time to strain the varnish using a paint strainer to ensure a smooth finish. Sometimes, this can make all the difference in the world in getting the kind of finish that any boater would be proud of.
• As for applying coats, there are certain products that require you to start from the middle so that you can ensure an even coating. Others would caution about wiping too much, while many suggest, as is often the case in spar oil-based urethane, to make thin coats for every layer.
• Bristle brushes and badger-hair brushes are often the standard tool for application. But, again, there are products that are easier to apply with a spray or roller.

Most marine varnishes typically last for at least 2 years. There are brands that have a minimum of 3 years before they begin showing signs of damage. I can attest to marine varnish that keeps its shine and protection for 5 years, and I’ve highlighted the exact products that can achieve that.

Ultimately, if you keep its sun exposure to a minimum, you’re guaranteed to extend any kind of varnish’s lifespan. I’ve noticed that varnished fixtures and furniture in my yacht tend to last significantly longer than the ones that are exposed to sunlight extensively, regardless of the varnish’s UV-protective capabilities.

This is almost always the case considering this type of varnish is marine-grade. Most experts attribute this to spar varnish’s flexibility (i.e. its ability to expand and contract with the wood). However, equally many attribute it to the simple fact that spar varnish is mainly oil-based, allowing to wick away moisture with ease.

Now, do you have a good idea of what the best marine varnish brings to the table? With all things considered, the best parting advice I can give is to not hesitate to try out the options available to you. Sure, there will always be no-brainer choices, but it didn’t take long for me to find out that it pays to try out other brands because they may give your boat the kind of shine or longevity you’ve always wanted.

“I am James Harvey – founder of Boating Basics Online. It is established with the drive to help out first-time boaters, which are those desiring to explore their way through the water. So if you are new to boating, start from here with me. “

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The Best Marine Varnish: Exterior Wood Finish Tests

Two-part varnishes leading in durability as long-term test reaches 24-month mark..

Like spotting land after a long passage, were glad to say that the end of our long-term exterior wood finishes test is finally on the horizon. Time, weather, and Southwest Floridas unrelenting sunshine have clearly taken their toll on the test panels over the last 24 months, and as the evaluation moves into its third year, only 19 of the original 54 test products will continue on in our survival-of-the fittest finish matchup. Given that most wood coatings are rarely expected to last longer than two years in the marine environment-particularly in super-sunny locales-its no surprise that we’ve seen more significant changes in the coatings in the last six months than we had in previous checkups.

Our search for the ideal wood finish-relatively easy to apply, easy to maintain, lasts multiple seasons, and is affordable-began in 2007 when we took a look at the different types of exterior wood finishes on the market, their pros and cons, and how easy they were to apply ( one-part varnishes , August 2007; varnish alternatives , October 2007; two-part varnishes , December 2007; teak oils and stains , April 2008). Launched in 2008, the long-term panel test aimed to determine which type of coating offers the best and longest protection and which products stand out among their peers.

We hope the comparison enables readers to decide which finish best matches their own taste, potential labor investment, and wood protection needs.

We’ve rated the test products every six months and reported on the coatings durability in the May 2009 issue ( six-month checkup ), December 2009 issue ( 12 months ), and January 2011 ( 18 months ) issues. Here, we offer the two-year report on the survivors.

How We’re Testing the Marine Varnishes

Testers applied dozens of exterior wood finishes (22 one-part varnishes, six two-part varnishes, 18 synthetics and satins/varnish alternatives, and eight teak oils and sealers) to small panels of bare solid teak. Each was assigned a number for blind judging and was applied per manufacturers instructions. If makers gave a range for the number of coats to apply, testers went with the minimum.

Initial testing rated each products ease of application and original gloss and reflective qualities. In the summer of 2008, the test panels were mounted on a wooden rack (aka: The Rack), which was set up in an unobstructed area on the roof of the PS workshop in Sarasota, Fla., to ensure that all panels received the same amount of weather exposure. The top part of each panel was covered to create a control area that testers used for comparison over time. Every six months, we disassembled The Rack and rated the panels on how well their coating integrity, gloss, and color had fared over time with constant exposure to the elements.

The test was designed as an endurance test, a fight to the finish, so we have not done any maintenance coats or touch-ups to the test panels. These products can be expected to have much longer lifespans if they are regularly maintained.

How We’re Rating the Marine Varnishes

Testers rate each panel on three long-term performance criteria: coating integrity, gloss retention, and color retention. Excellent and Good coating integrity ratings mean that no maintenance is needed; a Fair indicates that its time for a maintenance coat; Poor means the fat lady has sung, and the coating would need to be removed and re-applied. Excellent ratings are given only to those with an uncompromised coating. This time, panels with Poor and Fair- coating integrity were pulled from the test.

Color and gloss retention ratings are relative to the panels original finish. Initial gloss and ease of application are relative to the field within each coating category; these were assigned immediately after the panels were coated.

It was tougher to pick Recommended coatings at the two-year mark, as most wood finishes aren’t intended to go that long without maintenance. One-part varnishes that earned PSs recommendation this go-round were rated Fair for coating integrity (none rated better than Fair ) and had no Poor ratings. Recommended two-part systems rated Good or better for coating integrity with no Poor ratings. No varnish alternatives or teak oils/sealers were recommended at two years.

VALUE GUIDE: Varnish Alternatives

What We Found

What a difference a season makes! With the exception of a few two-part products, the test coatings had lost their sparkle at the two-year mark. Ratings slipped across the board. The UV abuse had obviously taken its toll, sucking the life out of most of the coatings, particularly the clear finishes.

Those clinging to life with Fair coating integrity are still protecting the wood, but they’ve lost their looks. In the real world, all of the one-part varnish and varnish alternative test panels would be due for a maintenance coat, and some-like HMG K Type Varnish, West Marine WoodPro Plus (rebranded Epifanes Rapidclear), and Ace Spar Varnish-would be overdue.

The biggest overall decline was within the one-part varnish test group: Not a single one rated better than Fair for coating integrity or gloss retention, and nearly half of the test field was retired after this rating round. Just six months before, eight of the 19 products rated Good for coating integrity and six rated Good for gloss retention. In 12 months, seven dropped from an Excellent coating integrity to a Fair.

The one-part varnishes offering the most protection after two years are Detco Crystal, Le Tonkinois Vernis, and Pettits Z-Spar Captains 2067. However, their extended protection comes with tradeoffs: Detco rated only Fair for application, Le Tonks gloss started to slip after one year, and Pettits 2067 started losing its original color after 12 months.

One hardware store varnish has surprisingly held its own over the long haul: Minwax Helmsman Spar Urethane. At half the cost of the Recommended one-part varnishes, Minwax slacked in the color retention department, but it has proven its multi-season durability.

Four of the nine varnish alternatives have been voted off The Rack after two years, and none performed well enough to earn our recommendation for two-year wood protection.

The Cetol products are still at the head of the pack, albeit a somewhat mangy-looking pack. The cloudy, opaque look of the Cetol Marine and Marine Light products may not appeal to everyone, but the fact they’ve maintained their color for more than a year is a good example that higher-solids finishes tend to offer better UV protection.

The Cetol Natural (with gloss) test panel fell from a Good coating integrity six months ago to being dropped from testing. Its performance mirrors what we’ve seen in the field: Give it a little loving once a year with a scrubby pad and a fresh coat, and it’ll last the long haul.

Its taken two years, but the two-part varnishes are finally starting to show their age. Surprisingly, the first products to be dropped from this group are two that performed well in past PS tests: Bristol Finish and Honey Teak. This is likely because the life of a wood finish in Florida is always going to be shorter than in our past test locales in New England.

The other two-parts are still holding up well, with Interlux Perfection and Nautiking Nautithane offering uncompromised protection and better-than-expected gloss after 24 months. Perfection has been reformulated since the test began and is now sold as Perfection Plus.

The temporarily discontinued (since 2009) Smiths Five Year Clear has also proven to be a top-notch finish, but its not available at this time.

While HMG Acrythane XSC didn’t earn our Recommendation this time, it was a top 18-month finish, it still looks good, and it costs less than the Nautithane.

Conclusions About Exterior Varnishes

After two years of testing, we’ve come to accept that perhaps there’s no Holy Grail of exterior wood finishes. It would appear, unfortunately, that we can’t have it all: easy to apply, easy to maintain, long-lasting protection, and a budget-friendly price tag. The reality is that, like much in life, wood protection is all about compromise and balancing your needs with your wants.

There’s no one-size-fits-all solution, and the boat owner who finds gratification in the wet, glossy look of a two-part varnish borne of painstaking preparation and careful application will weigh our test data much differently than the one who regards brightwork maintenance as a masochistic endeavor. For the latter, we recommend seeking out a varnish alternative (easy to apply, easy to maintain) that suits your tastes. With modest maintenance, the Cetol products with gloss overcoats have proven to be the most durable.

For areas where slippery-when-wet coatings wont do, Cetol Natural (without gloss overcoat) or our top-pick teak oil, Star brites Tropical Teak Sealer (classic teak) should be considered. The Star brite will need to be reapplied every three or four months.

If you’re looking for a harder, more abrasion-resistant finish that’ll make it past the year mark, check out the top one-part varnishes like Detco Crystal or Pettits Z-Spar Captains 2067. Boat owners in sailing areas that see less sunshine than our Florida test site should also consider Pettits Flagship 2015 or Captains 1015. One-part varnishes require a little more work upfront and quick attention when they are scratched or dinged, but they also offer a more traditional, high-gloss look. The one-part varnishes in our test slipped dramatically after a year and half, so we suggest an annual maintenance coat, whether they look like they need it or not.

As this test has shown, when it comes to long-lasting protection and gloss, two-part varnishes just can’t be beat. They may be a pain to apply-and should you let the coating fail, you had better invest in a heat gun-but their durability is unmatched.

The top two-part after two years of testing was Interlux Perfection. Because we’ve not yet tested the reformulated Perfection, the top pick honors go to Nautikings Nautithane. While its price tag ($120 per quart kit) is a bit hard for most of us to swallow, Nautithane earned across-the-board Good ratings after two years.

Practical Sailor often supplements panel testing with product challenges aboard our test boats to see whether top products still earn their keep in the real world and to try out new products. Two such evaluations are our exterior wood finish tests.

In the January 2011 issue, we introduced a head-to-head matchup of varnish alternatives—market-newcomer PolyWhey from Vermont Natural Coatings versus perennial favorite Interlux’s Sikkens Cetol Natural Teak—that had been applied to our Cape Dory 25 test boat. For that test, we’ve just let nature run its course: no band-aid touchups, no maintenance coats, no freshwater rinses, no TLC at all.

Comparatively, we’ve been testing Cetol Natural aboard our Chesapeake Bay-based Union 36 test boat, where it was laid on with the Cetol gloss overcoat in 2008; in this evaluation, testers have applied annual maintenance coats and given the coating regular TLC. Here’s the latest on both of these tests:

PolyWhey vs. Cetol Death Match

In the fall of 2010, testers applied three coats of Caspian Clear PolyWhey to the coamings and companionway trim on the Cape Dory, which is sailed several times a week and lives on a mooring in Sarasota Bay, Fla. We also applied Cetol Natural to the boat’s toerail, and previously had applied it to the tiller and forward hatch trim.

PolyWhey is a unique wood finish that uses whey protein, a by-product of the cheesemaking process, as a binder. It’s touted as a more eco-friendly and more sustainable coating than petroleum-based polyurethanes, which can have up to 75 percent more volatile organic compounds (VOCs).

Consistently among the top varnish alternatives in PS’s tests, Cetol Natural is not as muddy-looking as its predecessors, Cetol Marine Light and Cetol Marine—like the Caspian Clear, it allows the wood’s natural grain to show and has a low gloss.

As far as application, both the Cetol and PolyWhey are quick and easy to apply, with much shorter recoat times than hard varnishes and less (or no) sanding between coats. The main difference that we found in these two finishes was with durability.

The PolyWhey turned out to be a much softer coating than the Cetol. It held up for about two months, but after three months, it was in need of a recoat, and at six months, it needed a total takedown—and Cetol had emerged as the death-match victor.

The PolyWhey on the coaming was the first to go: Where crew backs often lean against the wood, the finish was all but gone after four months. The PolyWhey on the companionway slides held on for about that long, but by six months, they were ready for a do-over as well.

The Cetol on the toerail was in need of a few touchups after six months, mostly in areas where fenders and docklines came in contact with it. But the tiller and hatch trim were still fairly well-protected almost a year after application. Although we’d recommend a maintenance coat at this point, testers plan to see how many more months we can eek out of the coating before we reach the point of no return.

Bottom line : We applaud VNC’s efforts to offer a “green” wood finish—and their creative recycling of dairy industry “trash”—but we can’t recommend it over Cetol for an exterior coating in the marine environment.

Cetol with Overcoat

Testers applied three coats of Cetol Natural with Cetol Marine Gloss overcoat to the Union in March 2008. Once a year, we scuff it up with a 3M pad, give it a freshwater rinse, and brush on a maintenance coat.

Compared to a clear, glossy varnish, it looks decent and the maintenance regimen is more realistic for our tastes and available time. However, one downside to softer, varnish alternative coatings—even those with an overcoat—is that they don’t stand up as well as hard finishes to dings and abrasion. Example: The Union’s toerail has one place in need of touching-up where a fender line wore away the finish. (See photo above.)

Bottom line : The Cetol Natural with overcoat has held up very well. While applying the topcoat may mean added effort, both our panel tests and test-boat evaluations have shown that the coating will last much longer and need fewer bandaids if the soft Cetol is protected with the semi-hard topcoat.

Teak oils and other naturally based finishes like PolyWhey, need maintenance coats every few months. Their chemical cousins, however, like Cetol, have proven they can offer good protection with only annual nurturing and the occasional touchup.

• C-Tech Marine (Bristol)
• Deft Finishes
• Le Tonkinois
• Premapro (Coelan)
• Signature Finishes
• Smith’s Five Year Clear
• Vermont Natural Coatings
• West Marine
• Woodplus Marine

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18 comments.

I’m surprised you didnt include Alwood from Awlgrip

Search Awlwood on the website. We have a couple reports. October 2014 (chandlery), and June 2015 issues. Download the PDFs, because the tables haven’t been loaded online yet. It is broadly comparable to Sikkens Cetol.

opps, Awlwood not alwood

All very interesting……The “bottom line” is just flush the line in fresh water.

Thank you for the great info. I am going order year of Practical Sailor.

What is your opinion of covering a 2 part varnish with a one part?

It is certainly a comprehensive test. I’ve taken the journey of sticking with one of your “good” one part varnishes, Epiphanes Wood Finish gloss 10 coats with Epiphanes final two matte finishes. I’ve been quite impressed with it over the past 8 years on both my Cape Dory Typhoon and my Alberg 30. My conclusion is, read your directions carefully and be patient through all phases of application. Teak requires a caregiver! Great read especially during this pandemic period.

Great review. Your test is useful for me because I want to buy but dont know which product is the best. I must say that I like all of those mentioned above and price is really cheap. It’s always good to hear other input.

You missed out Pettit’s Gold, a water-based varnish. I have used it, and it’s great. For long life? Too soon to tell. Cetol has mostly been a disaster, especially with the Gloss overcoat. Applying Cetol can be tantamount to vandalism.

That’s really nice post. I appreciate your skills. Thanks for sharing.

Did you continue with testing to date, I am after a product that want yellow or bloom because of constant direct sunlight. I am in the North West of Australia where the temp at it’s coolest is 30+ Celsius for a couple of months and peeks over 50 + Celsius for a lot more than the couple of cooler months.

I use Rust-Oleum 207008 Spar Varnish. So much better than those water-based varnishes. This stuff protects almost forever. We used to use this kind of spar varnish in the Navy to protect the woodwork exposed to salty air.

The Interlux Varnish became my favorite varnish on teak fixtures when I tried it out 2 years ago. This is because of the immense difference it makes in the way it lends my pulpit or anything made of teak with a sophisticated, good-as-new finish.

It’s strange that you call out Pettit Z-Spar Captains 2067 as a top performer in the conclusions, but it’s not shown in the chart. Those Pettit products that are included in the chart don’t appear to be top performers. I’m confused.

After less than a year the Bristol finish I used on my boat looks terrible and will have to be removed. The folks at Bristol are absolutely no help at all. Their disclaimer is that they know nothing about boats. I most strongly advise against using this product for marine application. I have photos taken immediately after application, two months after, and eight months after if anyone is interested. By the way, the problem manifested on well prepped old teak and well prepped new teak. Could have just been a bad batch of finish but as I said, the folks at Bristol were no help. I ADVISE AGAINST USING BRISTOL FOR MARINE APPLICATIONS

I’m certain that the analysis of marine varnish was expensive and time consuming but one area that could benefit many subscribers if it was conducted continuously. Practical Sailor is the only place that I can rely on for accurate, up-to-date information on the products I need and use.

This is an important maintenance topic to me. Maintaining brightwork is a lot of labor. This article was last updated in June 2020. I would appreciate an update. I have been using Epifanes clear high gloss varnish for the last five seasons. It gives a good finish but it needs to be touched up one a year even though my boat is under cover for six months of the year. I sail on Lake Erie.

Hi Darryl, I’ve been reading about the new clear wood finishes that are UV cured for furniture. They often topcoat with a “nano” finish. Is this new technology suitable for the marine environment? It sounds too good to be true, easy application, no waiting time, resists scratching… Thanks

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Top 8 Best Marine Varnish for Wood- UPDATED Buying Guide

Table of Contents

With the best marine varnish for wood, you can ensure that your wooden boat or other wooden objects will remain in perfect condition. With so many different products on the market, it is difficult to find the best without doing some research first. In this article, we have compiled a list of the best marine varnishes for wood and what factors to consider when making your decision about which one is best suited for you and your needs. We hope that after reading this article you will be able to make an informed decision as well as select the best product available on the market.

The most frequent way of rejuvenating old wood is to varnish it in different wood finishes. Many people varnish their cabinets and countertops to give them extra protection as well as a glossy finish. A finely varnished wood or piece of furniture is both attractive and stunning sight.

However, determining the finest marine varnish for wood is a difficult enterprise. Many people are perplexed as to whether or not they’re using the proper product. I’ll go through the best marine varnishes for wood and what you need to know before making a decision and how to apply them correctly. What exactly is a maritime varnish?

Summary Of The Best Marine Varnish For Wood 

What Is Marine Varnish?

Marine varnish is a type of varnish that is specifically formulated to protect wood surfaces in marine environments. It is made with special ingredients that make it more durable and resistant to water, UV rays, and salt. Marine varnish is commonly used to protect wooden boats, decks, and outdoor furniture. It is also used on interior wood surfaces that are exposed to high humidity or moisture, such as bathrooms or kitchens. Marine varnish can be applied to bare wood or over an existing finish, such as stain or paint. Tung oil , phenolic, and alkyd resin are some of the current materials used in the best marine varnishes for wood.

What Do Marine Varnishes Protect Against?

Marine varnish protects the surface of wooden boats and objects made from pine or any other type of wood that has been exposed to water against damage, corrosion, mold growth, UV degradation, scuffs, and abrasions. The best marine varnish for wood can be used on exterior and interior surfaces, so you only need to purchase one product for a film-forming finish. They can also protect against harsh weather conditions such as rain or humidity that might influence your best marine varnish for wood.

Different Types of Marine Varnishes

There are several types of marine varnishes available in the market, and choosing the right one can be confusing. Here are the six different types of marine varnishes:

• Traditional Varnish: Natural resins, such as linseed oil, tung oil, and pine tar are the essential components of traditional varnish that coat surfaces to a deep luster. This finish is very resilient but requires multiple coats for completion as well as a longer drying time than other finishes.
• Spar Varnish: Spar varnish is a specially designed exterior sealant that fuses natural and synthetic resins, making it resilient to ultraviolet rays, water damage as well as other harsh weather conditions. With this type of durability at your disposal, you’re sure to have long-lasting protection for your outdoor investments.
• Two-Part Varnish: Make your boat shine with two-part varnish. This high-performance product is composed of a resin and hardener that when combined, form an incredibly long-lasting finish. Due to its durability, this type of varnish is commonly used in marine applications and boats alike. So give your vessel the protection it deserves – go for two-part varnish today.
• Epoxy Varnish: For superior protection against water and UV rays, the epoxy varnish is your go-to solution. Boats and other marine applications reap the most benefit from this innovative type of varnish, made with powerful epoxy resin for a hardy finish that will stand up to even the toughest conditions.
• Polyurethane Varnish: Polyurethane varnish is a resilient, waterproof solution that provides long-lasting protection against the elements and UV rays. It’s an excellent choice for outdoor furniture and decking surfaces, as it maintains its strength over time despite regular exposure to rain or sunlight.
• Acrylic Varnish: For a protective finish that can withstand the elements, the acrylic varnish is your answer. Made with acrylic resin and offering resistance to water damage and sun rays alike, this type of varnish works wonders on all indoor wood surfaces.

Benefits of Marine Varnish

Protection against water and moisture.

Applying a layer of marine varnish to wooden surfaces helps create an impermeable shield that prevents water from infiltrating and causing damage. This is especially important for boats, docks, or any other structure which are regularly exposed to moisture. Marine varnish guards against wood rot, warping, swelling, and cracking brought on by prolonged exposure to humidity.

Take a wooden dock that is consistently exposed to water, for example. Without the appropriate protection and maintenance, it can rapidly deteriorate and become hazardous. By coating it with marine varnish though, you can protect the wood from damage caused by moisture; thus preserving its longevity for many years.

UV Protection

Exposing wood to extended amounts of sunlight can cause it to lose its vibrancy and become weakened, not just in terms of color but also strength. The use of marine varnish helps protect the wooden surface from solar radiation by providing a UV filter. Consequently, these filters help maintain the quality of your wood’s appearance for years on end while preventing any discoloration or fading that might otherwise occur without this protective layer in place.

Durable and long-lasting finish

Marine varnish is crafted to ensure toughness and durability, even in harsh conditions. Saltwater, humidity, and extreme temperatures can all be tolerated with this veneer – making it the perfect solution for boat decks, dockside areas, or any other exterior wood surfaces exposed to tough elements. With marine varnish coating your outdoor furniture you are sure that its beauty will stay intact no matter what Mother Nature throws at it.

Unlike other finishes, marine varnish offers enduring protection that can continue for up to 10 years or even more when adequately cared for.

Enhances the natural beauty of wood

Boats can be a work of art, and marine varnish helps to bring out their natural beauty. This clear finish enhances the wood grain and texture so that it pops – creating an eye-catching look with stunning results. In other words, the marine varnish is essential for any boat to fully appreciate its unique aesthetic.

As an example, think of a sailboat with magnificent teak decking. Enhancing its innate beauty by varnishing it can make the wood appear more eye-catching and timelessly classic at the same time.

Resistant to scratches and abrasions

Marine varnish stands apart as an impenetrable finish that resists scratches and abrasions. For areas of your home or business that are subjected to regular use, the marine varnish is the ideal choice for keeping surfaces looking pristine.

Consider, for instance, a dock of wood utilized to load and unload boats. Unprotected wood surfaces are prone to becoming scuffed or scraped easily; however, with the application of marine varnish as a protective layer these abrasions will be guarded against so that your wooden dock remains in pristine condition over many years.

Reduces maintenance requirements

Marine varnish gives a robust and enduring finish, thereby reducing the need for the upkeep of wood surfaces. Unlike other finishes which may necessitate frequent application or sanding, marine varnish offers long-term protection that requires little maintenance. This can be particularly beneficial for boat owners, who may not have the time or resources to perform regular maintenance on their vessels. By using a marine varnish, they can ensure that their boat remains in good condition with minimal effort.

Can be used on a variety of wood surfaces

Marine varnish is a multifunctional finish that can be utilized to protect various wooden surfaces, from boats and docks to outdoor furniture. For instance, think of a deck exposed to the elements – sun, rain, or snow – it’s the perfect place for marine varnish! With its robustness and versatility in mind, there are countless applications where this protective coating should not be overlooked. By applying a marine varnish, the deck can be safeguarded against damage caused by these elements, and its beauty preserved for many years.

Marine varnish is a remarkably adaptable finish that can be applied to boats, docks, decks, and outdoor furniture. This makes it the perfect choice for any application requiring an effective layer of protection against harsh weather conditions.

Consider a wood deck, exposed to all the elements nature has to offer such as sun, rain, and snow. Applying marine varnish will protect this type of surface from wear and tear over time, ensuring that it requires less maintenance in the long term. Similar logic applies to outdoor furniture which is also subject to diverse weather conditions; protecting them with marine varnish can dramatically extend their lifespan and reduce upkeep requirements.

Provides a glossy or satin finish

Marine varnish is renowned for its ability to provide a stunning glossy or satin finish that truly brings out the natural beauty of wood. Whether you desire a low sheen or high gloss, marine varnish has it all due to its heightened resin and oil content which together create an ultra-durable surface capable of reflecting light and lending deep vibrancy to any type of timber.

Disadvantages of Using Marine Varnish

Longer drying times.

Although marine varnish is renowned for its impressive durability and long-lasting protection, it, unfortunately, takes longer to dry than other finishes. Depending on the specifics of each application such as the type of varnish and environmental conditions, drying times could range anywhere from a few hours up to several days. However, due to this extended curing period, you can rest assured that your project will be secure against even the harshest weather conditions.

Requires multiple coats

Applying multiple coats is a common requirement for marine varnish, as it lacks the same thickness and strength in comparison to other wood finishes. Consequently, you must layer on several layers of this finish to protect your woodwork and achieve your desired level of aesthetic quality.

More expensive than regular varnish

Marine varnish is costlier than other wood finishes due to the exceptional durability and longevity it provides. This is because marine varnish contains increased resin levels, as well as additional ingredients, which increase its production costs. Furthermore, this type of finish necessitates multiple coats be applied; thus increasing labor-related expenses that are associated with using a marine varnish finish.

Can be challenging to apply

Applying marine varnish, especially for those with limited experience with the process, can be tricky. Its thinner consistency compared to other finishes makes it more vulnerable to dripping and streaking while its extended drying period can make achieving an even application in humid or damp climates a challenge.

Not suitable for all types of wood

Marine varnish can be an ideal option for many wood surfaces, yet it may not always deliver the best results. For instance, when applied to excessively porous or oily woods, the marine varnish will likely fail to adhere properly and produce a sub-par finish. To ensure success with this product on certain types of wood, proper preparation or conditioning is necessary before application.

Can yellow over time

If you’re looking for a varnish that won’t discolor your wood over time, it’s important to invest in one of high-quality containing UV inhibitors or other additives. Such products can prevent yellowing due to prolonged exposure to UV light and the environment. Marine varnishes without these features are more likely to cause an undesirable amber tone on wooden surfaces as they age. Additionally, regular maintenance and cleaning can also help to prevent yellowing and extend the life of the finish.

RELATED: Best Varnish for Wood Doors: Top 5 Reviewed, 2O21

Factors To Consider When Choosing The Best Marine Varnish for Wood

The type of wood being used.

Before selecting the optimal marine varnish for wood, it is essential to identify the kind of timber being used. Different woods have distinctive properties that influence their absorption and retention of varnish. Some kinds such as teak or mahogany contain natural oils which can make adhesion difficult; consequently, these must be taken into consideration when deciding on what product will ensure proper coverage. Woods like pine are more susceptible to harm from rain and other elements due to their softer, porous nature. Therefore, you must select a marine varnish tailored to the material used for it to provide maximum protection.

The location and environment of the wood

When selecting marine varnish, it is essential to think about where and how the wood has been exposed. Woods that are subject to intense conditions such as saltwater, ultraviolet light, and extreme temperatures necessitate a more reliable and protective coating than those in calmer environments. To further ensure longevity, woods located in damp climates must be rubbed with a varnish that can stand up to these particular conditions without eroding their defensive qualities.

The level of protection required

When selecting a protective coating for your wood, its location is of paramount importance. If it’s exposed to harsh environmental conditions like those found in marine settings, you’ll need to invest in higher-grade protection against water and UV rays. Alternatively, if the wood resides in an area where these elements are less present, lower levels of varnish may suffice.

The desired finish

When selecting a marine varnish for your wood, the desired finish should be kept in mind. These types of paints come in varying finishes from high gloss to satin, so it’s important to consider what look you’re going for before making any decisions. Ultimately, the choice is purely based on personal preference and desired aesthetic.

The application method

The application process is integral in the selection of a marine varnish. There are many types available, some of which can be brushed on while others require spraying or rolling. To create that perfect even finish you seek, make sure to select one that can be applied with your desired method; otherwise, it may not provide satisfactory results.

The drying time

When selecting the ideal varnish, one needs to consider drying time. Certain marine varnishes may require a longer wait before they are ready for use or exposure to harsh weather conditions – and this is something you must take into account when making your choice. Thus, you must select an option with a drying time appropriate for its purpose.

The durability of the varnish

When selecting a marine varnish, it is essential to consider its durability. Although all marine varnishes have been crafted for longevity, some are more durable than others. Opt for one that will protect the wood from any conditions it may encounter and guarantee an optimal level of protection.

The cost of the varnish

When deciding on a marine varnish, not only is it essential to take the level of protection into account but also its cost. Prices may range greatly among different products, so prudently select one that fulfills your needs without breaking the bank. You should keep in mind though, that quality costs more upfront; nevertheless, you can save money over time because premium brands require fewer reapplications or repairs.

Marine Varnish For Wood vs Oil-based Finish: Differences

Marine varnish for wood and oil-based finishes are two popular options for protecting and enhancing the natural beauty of wood surfaces. While they share some similarities, they also have significant differences.

Composition of Oil-Based Finishes:

Natural oils, resins, and solvents come together to make oil-based finishes. These penetrative sealants protect the wood while granting it a natural glow. Popular examples of these finishes include tung oil, linseed oil, and Danish oil.

Advantages of Oil-Based Finishes:

• Easy to apply
• Penetrates the wood fibers for deep protection
• Enhances the natural grain and color of the wood
• Can be easily repaired if damaged
• Provides a soft, natural-looking finish
• Less expensive than marine varnish

Disadvantages of Oil-Based Finishes:

• Longer drying time than marine varnish
• Requires multiple coats for maximum protection
• Susceptible to scratches and abrasions
• Can attract dirt and grime over time
• Not as durable as marine varnish
• May require more frequent reapplication than marine varnish

How Oil-Based Finishes Compare to Marine Varnish for Wood:

Offering protection and bringing out the natural beauty of wood surfaces, oil-based finishes, and marine varnish have distinct discrepancies. Marine varnish is meant for outdoor use specifically as it provides optimal security from water, moisture, and UV rays; additionally, its toughness surpasses that of oil-based finishes making it more durable in the long run. In comparison, oil-based finishes are simpler to use, appear more natural and cost less than marine varnish. At the end of the day, a person’s selection between these two should be based on their desired outcome and personal preferences.

Marine Varnish For Wood vs Polyurethane: Differences and Similarities

Marine varnish and polyurethane are two popular finishes for wood. While they share some similarities, they also have some key differences. Here are some of the main differences and similarities between marine varnish and polyurethane:

Composition of polyurethane finishes:

Polyurethane is a synthetic plastic material that is composed of urethane and other chemicals. It is used as a coating for many materials, including wood. Polyurethane is available in both water-based and oil-based formulas.

Advantages of polyurethane finishes:

• Durable: Polyurethane is a very durable finish that can resist scratches, abrasions, and other types of wear and tear.
• Water-resistant: Polyurethane is water-resistant, making it a good choice for use in areas that are exposed to moisture.
• Easy to apply: Polyurethane is easy to apply, and can be applied with a brush, roller, or spray gun.
• Versatile: Polyurethane can be used on a variety of surfaces, including wood, metal, and plastic.
• Quick drying time: Polyurethane dries relatively quickly, which can be convenient when you’re trying to finish a project quickly.
• Glossy finish: Polyurethane provides a glossy finish that can enhance the natural beauty of wood.

Disadvantages of polyurethane finishes:

• Can be difficult to clean up: Polyurethane is difficult to clean up, especially if you’re using an oil-based formula.
• Strong odor: Polyurethane has a strong odor, which can be unpleasant and may require proper ventilation during application.
• Can yellow over time: Polyurethane can yellow over time, which can be a problem if you want to maintain the natural color of the wood.
• Not as resistant to UV rays: Polyurethane is not as resistant to UV rays as marine varnish, which means that it may not provide as much protection against sun damage.
• Not as flexible: Polyurethane is not as flexible as marine varnish, which means that it may crack or peel if applied to wood that expands and contracts with changes in temperature and humidity.
• Can be expensive: Polyurethane can be more expensive than other types of wood finishes, which may be a consideration for some users.

How polyurethane finishes compare to marine varnish for wood:

When deliberating on which finish to select for your woodwork, polyurethane and marine varnish present two distinct options. Marine varnish is not only more durable than polyurethane but it also stands up better against UV rays due to its greater flexibility. Polyurethane does have a few advantages of its own; it is easier to apply and dries rapidly compared with the longer drying time typical of marine varnish. Polyurethane is more water-resistant than marine varnish and might be a wiser choice for projects that come in contact with moisture. Ultimately, the ideal decision between polyurethane or marine varnish relies on your specific project requirements as well as the wood you are working with.

How to Apply The Best Marine Varnish for Wood In 8 Steps

When it comes to applying marine varnish to wood, it is important to follow the right steps to ensure a smooth and long-lasting finish. Here are eight steps to consider:

Step 1: Sanding the wood

Before applying marine varnish, you need to sand the wood to create a smooth surface. Start with coarse sandpaper and gradually move to a finer grit sandpaper to create a smooth surface. Make sure to remove all the dust and debris using a vacuum or tack cloth.

Step 2: Cleaning the surface

The wood surface needs to be clean and free of any oils, dirt, or debris. Use a wood cleaner or denatured alcohol to clean the surface thoroughly.

Step 3: Applying the first coat

Apply the first coat of marine varnish using a brush, roller, or sprayer. Make sure to apply an even coat and follow the manufacturer’s instructions regarding the recommended thickness of the coat.

Step 4: Sanding between coats

After the first coat dries, sand the surface with fine-grit sandpaper. This will help the subsequent coats adhere better to the surface.

Step 5: Applying subsequent coats

Apply subsequent coats of marine varnish following the same process as the first coat. Make sure to apply thin coats and sand between coats.

Step 6: Sanding the final coat

After the final coat dries, sand the surface with very fine grit sandpaper. This will create a smooth and even surface for the final finish.

Step 7: Buffing the surface

Buff the surface using a buffing pad or cloth to create a glossy finish.

Step 8: Maintaining the finish

To maintain the finish of the marine varnish, make sure to clean the surface regularly and reapply a coat of varnish when necessary.

Tips for Maintaining Marine Varnish Finish

• Avoid exposing the wood to extreme temperatures or moisture: To keep your marine varnish finish looking its best, be sure to protect the wood from extreme temperatures and moisture. This involves staying away from direct sunlight as well as shielding it against rain, snowfall, or humidity. Neglecting this will cause the lacquer to crack or peel which can make for an unsightly outcome that is difficult to fix.
• Use a soft-bristled brush or microfiber cloth to clean the surface: To keep your wood looking pristine, it is essential to utilize a soft-bristled brush or microfiber cloth for cleaning. Refrain from using any abrasive scrub brushes or materials that could potentially scratch the finish and damage the varnish. Additionally, make sure you use a gentle cleaner specifically formulated for marine varnishes to simplify maintenance while effectively retaining its glossy luster.
• Avoid using harsh chemicals or abrasive materials: To preserve the elegance of your wooden furniture, be careful to avoid any harsh chemicals or abrasive materials. These can strip away the protective varnish and accelerate wear and tear on its surface. Instead, opt for a mild cleanser that won’t cause scratches or other damage when you clean it.
• Apply a fresh coat of varnish periodically to maintain the finish: Over the years, the marine varnish may become worn or lose its shine. To keep your wooden structures looking their best and well-protected, it is essential to apply a new coat of varnish on occasion. The frequency of this task depends on the level of utilization and exposure; however, as a general guideline, you should consider renewing the surface every 1-2 years for optimal results.
• Store the varnish in a cool, dry place to prolong its shelf life: Prolong the shelf life of your extra varnish and guarantee its usability for upcoming projects by storing it in a cool, dry place. Keeping it away from direct sunlight or humid environments is key as this could cause irreparable damage and render your leftovers unusable.
• Consider using a UV-resistant varnish: If your wood surface is exposed to a lot of sunlight, you may want to consider using a UV-resistant varnish. This type of varnish is specifically designed to protect against the damaging effects of the sun’s UV rays, which can cause the varnish to fade or break down over time.

Choosing the Right Brush for Applying Marine Varnish

Making the proper choice of the brush when applying marine varnish can prove to be invaluable. Natural bristle brushes make great use of animal hair, such as badger and hog bristles, while synthetic brushes are manufactured using a combination of nylon or polyester fibers. Deciding on which type is right for you will depend on your preferences and needs.

Natural bristle brushes offer several advantages, such as their capability to contain more varnish for even coating. Nonetheless, these brushes can be costly and are not suited for use with water-based varnishes. On the flip side, synthetic brushes provide a cost-effective option that is ideal for multiple types of coatings or finishes. When selecting a brush for marine varnish, the size and shape should also be taken into account. A tool that is too small may require more effort to apply correctly, while an oversized one can lead to excess drips and wasted varnish. Generally speaking, brushes between 2-3 inches wide are ideal for most applications involving marine varnish application; not only will this save time but money as well.

To guarantee a long lifetime and superior performance, it’s essential to mindfully maintain your brush. Following each use, your brush should be cleaned with the right solvent that is suitable for the type of varnish you employed. Subsequently, rinse and dry thoroughly before storing in an airy atmosphere devoid of moisture.

Reviews of the Top 10 Best Marine Varnish for Wood 1. TotalBoat Lust Matte Finish Marine Varnish   – Editors’ Pick

• MARINE GRADE VARNISH imparts a rich, clear amber tone that enhances wood grain; creates a durable, uv resistant, waterproof finish that won't fade; ideal for interior and exterior wood, brightwork on boats & outdoor furniture
• CLASSIC SPAR VARNISH WITH A MODERN TWIST: High-build, fast-drying formula allows rapid recoating, multiple coats per day and no sanding between coats; sand lightly before the final coat - be done in a little over 1 day
• FLEXIBLE COATING WON'T CRACK OR PEEL: Premium, oil-based marine polyurethane finish is not damaged when wood expands and contracts with changes in temperature; perfect for all types of wood
• EASY TO APPLY by brushing, rolling or spraying; For a high gloss varnish finish apply 6-8 coats of Lust Gloss; for a smooth satin finish, build with coats of Lust gloss varnish; use Lust Matte for the finish coats
• AVAILABLE IN HIGH GLOSS OR MATTE FINISH in Pint, Quart and Gallon sizes; Thinner: TotalBoat Special Brushing Thinner 100 (brushing/rolling) or TotalBoat Spray Thinner 101 (spraying); Coverage: 360-400 sq. ft./gallon

The TotalBoat Lust Matte Finish Marine Varnish is our Editors’ Pick because it’s water-based, easy to apply, and dries quickly. It imparts a smooth matte finish when applied to your best marine varnish for wood, making it resistant to scuffs, scratches, and discoloration caused by sun exposure. It’s oil-based, so it can be used on fiberglass or any exterior surface of your best marine varnish for wood including aluminum boats as well as a finish coat to other types of marine best marine varnishes without compromising adhesion.

• Available in quarts, gallons, and five-gallon containers
• A flat matte finish is ideal for exterior surfaces
• Dries to the touch in 30 minutes
• Can be recoated after six hours of dry time
• Contains UV inhibitors and stabilizers
• Water-soluble after it has dried
• Some surfaces might require two coats for full opacity

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2. Rust-Oleum 207008 Marine Spar Varnish, Quart

• Ideal for use on exterior wood surfaces above the water line, including trim, railings and wood furniture
• Oil-based formula expands and contracts with changing weather conditions
• Dries to the touch in 2 hours and covers up to 150 sq. ft.
• Durable coating provides excellent resistance to UV, salt and mildew
• Crystal-clear varnish leaves a beautiful gloss finish with maximum protection

Rust-Oleum Marine Varnish is the best marine varnish for wood with a high gloss, durable finish that can be applied on exterior surfaces. It dries quickly, offers superior UV protection that won’t yellow over time, and is oil-based for use with metal or fiberglass best marine varnishes for wood.

The UV- and weather-resistant qualities of this spar varnish make it durable in even the toughest conditions. The formula is designed to give the wood optimal protection against chemicals, sunlight, and water droplets. Because the varnish is so flexible, it can expand and contract with the seasons as needed, retaining its brilliant and superior appearance.

• Dries quickly
• The high gloss finish resists scuffs, scratches, and UV damage
• Safe to use on metal and fiberglass surfaces
• Consistency can be adjusted by adding thinner
• Must be applied to a completely dry surface or it will not adhere properly

3. Epifanes Clear Varnish – The Ultimate UV-Resistant Marine Varnish

• World famous, highest quality traditional tung oil marine spar varnish.
• Formulated with tung oil, phenolic and alkyd resins resulting in a finish that has superior flow, gloss, durability, and exceptional longevity.
• UV filters for superior protection with an ultra high gloss finish
• Used in many applications, both exterior and interior, household or marine, brushed, sprayed, or rolled and tipped.
• Use on new wood or restoring old wood to a deep clear finish, softwood or hardwood, marine or household applications.

Epifanes Clear Varnish is the best marine varnish for wood that offers protection from UV damage that won’t yellow over time. This clear varnish is non-yellowing and resists water and chemicals while giving the wood a tough, high-gloss finish with an easy application process. The UV-resistant qualities of this Epifanes marine varnish for wood ensure it lasts longer than others on the market today by protecting against harmful UV rays and can be applied by spray equipment.

Epifanes Clear Varnish is ideal for use on both interior and exterior surfaces, with a high-gloss finish that’s tough enough to withstand weathering from wind and water while providing superior resistance against scuffs, stains, and scratches, chips, or dirt accumulation. The varnish features excellent adhesion properties so it forms a tough, protective layer over the wood and prevents moisture from penetrating finished wood due to paste wax.

• Waterproof and resistant to scratches, scuffs, chemicals
• Tough, high-gloss finish
• Resists yellowing and moisture penetration
• Resists water and chemicals
• Best high gloss finish
• UV-resistant
• Not intended for use on fiberglass surfaces due to its oil-based formula

4. Epifanes Clear Varnish (250 ml)

• World famous, highest quality tradional tung oil marine spar varnish.

Epifanes Clear Varnish (250 ml) is the best marine varnish for wood with a clear finish that dries to a hard, durable film in just one coat. This varnish resists yellowing and moisture penetration while drying quickly to a tough, high-gloss finish that’s resistant to scuffs, stains, scratches, or dirt accumulation.

Epifanes Clear Varnish is ideal for both interior and exterior surfaces as it forms a protective layer over the wood. It is waterproof and resists yellowing, moisture penetration, or chemicals while drying quickly to a tough high-gloss finish that’s resistant to scuffs, stains, scratches, or dirt accumulation. The varnish features excellent adhesion properties so it forms a protective layer over the wood and prevents moisture from penetrating.

• A high gloss finish resists water and chemicals
• Long-lasting, durable finish that resists scratches and scuffs
• Waterproof when dry, resistant to scratches or dirt accumulation
• Not for use on fiberglass
• Requires sanding between layers

5. TotalBoat Lust High Gloss Marine Varnish

TotalBoat Lust High Gloss Marine Varnish is the best marine varnish for wood that is easy to apply and provides a high gloss finish. This varnish resists scuffs, stains, scratches, or dirt accumulation while drying in just one hour. The water-resistant qualities of this lust marine varnish for wood ensure it lasts longer than others on the market today by protecting against yellowing or moisture penetration over time.

• Waterproof and resistant to scuffs, stains, scratches, or dirt accumulation
• Glossy finish with no brush marks
• Resists yellowing over time
• Highly durable, long-lasting finish that resists chemicals
• Dries quickly (one hour)
• Too glossy for some applications

6. Valspar Spar Varnish

• Maximum U.V. Protection/Extra protection from sun and weather
• Use on interior and exterior wood surfaces to protect and beautify for years to come
• Water Resistant/Prevents Weather Damage - Clear Satin Finish
• Use on hand rails, Wood outdoor furniture, Interior window sills and frames, Planters, Lamp posts, Wood trim on boats (above water line)
• EPA banned in AK, CA, CT, DC, DE, HI, IL, IN, MA, MD, ME, NH, NJ, NY, OH, PA, RI, VA

Valspar Spar Varnish is another marine varnish for wood that dries quickly. This gloss spar varnish protects against scuffs, stains, scratches, or dirt accumulation while resisting yellowing over time. It also resists moisture penetration and is water-resistant when dry making it ideal for exterior use on wood surfaces that are exposed to the elements.

This high-gloss varnish is simple to apply and does not require sanding between coats because of its low porosity level. As a result, the varnish brings out the best finish in the wood while hiding its unsightly appearance.

• Waterproof finish
• Easy application with no brush marks
• Long-lasting finish that resists stains & scratches
• Spar varnish is less flexible than other finishes; not ideal for environments with extreme temperature changes.

7. Minwax 63200444 Spar Urethane Varnish

• PROTECTIVE CLEAR FINISH – Minwax Helmsman Spar Urethane is specially formulated as a protective varnish for wood for interior and exterior projects. It contains special UV blockers that reduce the sun’s graying and fading effects.
• EFFECTIVE YEAR ROUND – This wood varnish forms a protective barrier against rain and moisture to protect your projects and keep them looking their best. Special oils allow the finish to expand & contract with the wood as seasons and temperatures change.
• VERSATILE – Ideal for use on doors, windows, trim, bathroom cabinets, bar tops, kitchen countertops, outdoor furniture and more.
• GLOSS FINISH – Give your wood projects a sleek finish with this gloss varnish. It not only protects the natural beauty of the wood, but offers a shiny, sleek sheen for a modern look.
• A BRAND YOU CAN TRUST – Minwax is America’s leading brand of wood finishing and wood care products. Since 1904, we have been inspiring consumers to Keep on Finishing. We offer consumers a complete line of products to meet every wood finishing need.

Minwax Spar Urethane Varnish is a fast-drying urethane varnish that is easy to apply. This urethane marine varnish for wood provides a long-lasting finish with protection against moisture penetration. It also resists yellowing over time while resisting scuffs, stains, and scratches. This varnish dries quickly with a glossy finish that does not require sanding between coats because of its low level of porosity which helps it bring out the best in your wood surface.

• Waterproof when dry; protects against moisture penetration
• Easy application with no brush marks; resists scuffs, stains & scratches
• You will need to be fast with the application, as it dries quickly

How to Sand Wood for Marine Varnish Application

Before applying marine varnish to wood, it’s important to properly sand the surface. Sanding helps to remove any imperfections, smooth out rough patches, and create a clean and even surface for the varnish to adhere to. Here are some tips f sanding wood for marine varnish application:

Choosing the right sandpaper grit for different wood surfaces: The abrasive quality of sandpaper is determined by its coarseness or fineness. When prepping wood for marine varnish, a medium-grit paper between 100 and 120 should be used to achieve the required balance of smoothness and durability. For rougher materials, select something in the range between 80–100 while finer surfaces need higher grits from 120 up to 150.

The importance of proper sanding techniques: Sanding is best done with the natural grain of the wood, utilizing a back-and-forth pattern. To keep the sandpaper from creating patchy surfaces, make sure to continually move it in one direction following the grain’s lines – this will help preserve and protect your wooden material.

Tips for avoiding common sanding mistakes: A frequent mistake when sanding is applying too much force, which can cause the sandpaper to generate scratches or divots in the wood. Likewise, using an excessively fine grit of sandpaper too early on could make it difficult for varnish to stick securely onto the surface. Therefore you must be precise and take your time while sanding instead of rushing through it haphazardly.

How to Remove Marine Varnish from Wood

When it comes to removing marine varnish from wood, several methods can be used depending on the extent of the finish, the type of wood, and the tools available.

Tools and materials

• Chemical stripper
• Protective gear, such as gloves, goggles, and a respirator.

Here are four common methods for removing old varnish:

• Sanding: For those seeking to revitalize their aged varnish, sanding is the most popular method. By utilizing either a manual or electric sander, you can slowly strip away layers until the desired finish is achieved – all while avoiding toxic chemicals! It’s an effective way of purging old coats; however, it may be time-consuming and messy at times.
• Chemical stripping: Chemical strippers are remarkably effective solvents that dissolve existing varnish, making it easy to remove. Although quicker than sanding, this process requires extra preparation and can be quite messy. For safety reasons, read the product label carefully and wear protective clothing such as gloves at all times while using chemical strippers.
• Heat gun: For speed and ease in removing varnish from surfaces, a heat gun is an excellent tool. However, it’s important to take safety precautions when using this device. You must wear protective gloves and work in an area with proper ventilation to avoid any hazardous situations. With the right steps taken care of, simply use your putty knife or scraper to scrape away the softened varnish quickly and efficiently.
• Planing: With the use of a woodworking plane, you can easily remove the top layer of the surface and its varnish from flat surfaces or large areas. Although it requires some expertise to master this technique, practice makes perfect.

Tips for minimizing damage to the wood surface during varnish removal:

• Work slowly and carefully to avoid gouging the wood surface.
• Use a scraper or putty knife to gently remove the varnish, working with the grain of the wood.
• If using a heat gun, keep the nozzle moving and avoid focusing on one spot for too long to prevent scorching or burning the wood.
• If using a chemical stripper, follow the instructions carefully and avoid leaving the product on the wood for too long.
• When sanding, start with a coarse grit sandpaper and gradually work your way up to a finer grit to avoid scratching the wood surface.
• Use a sanding block or machine to ensure even sanding.
• Remove all dust and debris from the wood surface before applying a new finish.
• Consider seeking professional help if you’re unsure about how to proceed or if the wood surface is particularly delicate or valuable.

Environmental and Health Considerations When Using Marine Varnish

Marine varnish contains potentially hazardous chemicals that can have negative environmental and health impacts if not used and disposed of properly. Here are some environmental and health considerations to keep in mind when using marine varnish:

• Potential environmental impact: Applying marine varnish can be hazardous to the environment if not disposed of responsibly, as these chemicals may contaminate soil and water sources that are critical for plants and animals.
• Proper disposal: It is imperative to discard unutilized varnish and other materials correctly. Ensure you contact your local waste management institute to ascertain if they have special rules for disposing of hazardous substances such as varnish.
• Precautions in enclosed spaces: If you are applying varnish in a limited or not well-ventilated area, it is essential to take safety measures for your well-being. Wear a respirator and other security gear while ensuring there is an abundance of fresh air circulating throughout the space. Use of protective clothing and equipment: When applying marine varnish, it’s important to wear protective clothing like gloves and long sleeves to prevent skin contact. You should also wear eye protection and a respirator to avoid inhaling any fumes.
• Consider alternatives: If you worry about the environmental and health consequences of using marine varnish, why not switch to a more eco-friendly or non-toxic alternative? Look for labels that say low-VOC or water-based, but if those don’t appeal to you, consider natural finishes like oils or waxes instead.

What is the difference between marine varnish and regular varnish?

Marine varnish is specifically designed to withstand exposure to harsh marine environments, such as saltwater, UV rays, and moisture. It contains additives that provide extra protection against these elements. Regular varnish, on the other hand, is designed for interior use and provides less protection against environmental factors.

How many coats of marine varnish do I need to apply?

The number of coats of marine varnish needed depends on the level of protection desired and the condition of the wood surface. Typically, two to three coats are recommended, with sanding between each coat for better adhesion.

How long does marine varnish take to dry?

The drying time of marine varnish can vary depending on the product and environmental conditions. Typically, it can take 24 to 48 hours for each coat to dry. However, it is important to follow the manufacturer’s instructions for specific drying times.

Can I apply marine varnish over an oil-based finish?

Yes, it is possible to apply marine varnish over an oil-based finish, but it is important to ensure that the surface is clean and sanded for proper adhesion.

Can I apply marine varnish over painted wood?

No, it is not recommended to apply marine varnish over painted wood as it may not adhere properly and can result in an uneven or peeling finish.

How often do I need to maintain the marine varnish finish?

The maintenance frequency of the marine varnish finish depends on the level of exposure to environmental elements and wear and tear. Typically, a fresh coat of varnish may need to be applied every 1 to 2 years to maintain the protective finish. Regular cleaning and inspection of the surface can help identify any areas that need touch-ups or repairs.

The finest marine for wood is a must-have. When you want your furniture or boat to last as long as possible on wood finish , you should use the greatest marine varnish. The ideal marine varnish will preserve and enhance the appearance of your wood furnishings by giving them a glossy finish. Your furniture will endure longer without fading or losing its attractiveness.

RELATED: Top 5 Best Varnish for Plywood: Updated Reviews 2021

Reference: Wikipedia

Which Yacht Varnish Is Best For My Boat?

Yacht varnish is a specialized type of varnish that is often used on boats. It has several advantages over conventional varnish, which is why it is becoming more and more popular among boat owners. In this guide, we will discuss the benefits of yacht varnish. We will also answer some common questions about yacht varnish. So if you are interested in learning more about this topic, keep reading!

Yacht varnish is a type of varnish specifically designed for boats. It is typically made from a tougher resin that can withstand the harsh conditions that boats are exposed to, such as salt water and sunlight. Yacht varnish also often contains UV inhibitors to help protect the wood from fading and other damage caused by exposure to sunlight. Conventional varnishes are not as durable as yacht varnish and will not stand up to the same conditions. This makes them less suitable for use on boats. However, they can still be used for other applications, such as furniture or around the garden.

Which types of varnish to use on my boat?

Marine varnish can be divided into three different types, each with its own perfect uses. Yacht owners choose to use one or all of these types for better performance.

Tung Oil-based varnish 

Is the most popular type among yacht owners who take boat maintenance seriously. International Schooner or Goldspar Boat Varnish are both oil-based varnishes that coats the wood evenly leaving a smooth finish while requiring minimal preparation work before it can be applied. This only requires a couple of coats. Is advisable to lightly sand the surface between coats to achieve the highest quality glossy finish. The smooth, high gloss finish will protect teak parts from water stains and help to maintain their appearance over time! Its UV protection helps prevent mould growth too which is especially important in wetter climates. Oil-based varnish is easy to apply and can be repaired by sanding and re-oiling the wood, meaning it will last longer than other conventional varnishes. It's also easier to apply compared with water-based yacht varnish which requires no sanding or priming before application.

Water-based boat varnish

Often used on marine boats where there is not much exposure to agitation or rubbing, making oil-based varnish too heavy for use. This yacht varnish type tends to leave a thin, powdery residue that needs sanding down after drying but offers better penetration into the wood than its oil counterpart. Polyurethane boat varnish - is much more hard-wearing than oil or water-based yacht varnishes. Stronger than oil-based or water-based yacht varnish, polyurethane yacht varnish tends to dry quickly and offers an ultra-hard surface that is resistant to impact, scratching and denting. This yacht varnish type has a high gloss tough finish so it's best suited for areas of the boat that are exposed to more wear and tear. This type of varnish can also be divided into two categories as one part polyurethane boat varnish and two-part polyurethane varnish.

One Part Polyurethane Varnish

The yacht varnish that is most commonly used for yacht paint jobs. The yacht varnish offers a quick drying time and can be easily re-coated within hours between each coat. It should be noted that due to its rigidity it is not recommended to be used for painting highly flexible wooden areas as it might crack in time leaving the wood exposed to elements. Two-Part Polyurethane Varnish - is the varnish with longer working times, making it easier to apply on larger boats. It's advisable to use only one part polyurethane yacht varnish for smaller projects as two-part yacht varnishes tend to leave an unprofessional finish when applied by hand. This type of varnish is extremely tough and consists of two products mixed together. It offers very good protection from moisture and UV damage but the same as the above this is not suitable for some areas on your yacht (such as spars) and it will crack as the wood moves and will leave the wood exposed to the elements.

Is yacht varnish waterproof?

Yes, yacht varnish is typically waterproof. This makes it a good choice for protecting boats from the elements. It can also help to keep the wood of the boat looking its best for longer.

Does yacht vanishes need a primer?

No, yacht varnish does not typically need primer. However, it is a good idea to test it on a small area of the surface you are going to varnish to make sure it adheres properly. If you do decide to use primer, make sure it is designed for use with yacht varnish.

Does yacht varnish seal wood?

Yes, yacht varnish seals the wood. It forms a protective barrier that helps to keep the wood from damage and keeps it looking its best for longer.

How long does yacht varnish last?

The lifespan of yacht varnish varies depending on the brand and the conditions it is exposed to. However, it typically lasts for several years, anywhere from two to three years before you need to apply a new coat or two. Some varnishes obviously last longer than others depending on the area where they will be applied.

Which is better? Woodstain or yacht varnish?

There is no simple answer to this question as it depends on the specific application and the needs of the user. However, in general, yacht varnish is a better option for protecting wood from the elements and keeping it looking its best. It is also typically more durable than wood stain, which makes it a better choice for boats.

Why is it important to sand between coats?

It is important to sand between coats of yacht varnish because it helps to create a smooth, even surface. This makes the final coat of varnish look its best and helps to protect the wood from damage.

How many coats should I apply?

The number of coats you should apply depends on the specific product you are using and the area you are varnishing. In general, two to three coats are sufficient. However, it is always a good idea to follow the manufacturer's instructions for the best results.

What type of finish can you get?

There are three types of finish on boat varnish: gloss, semigloss, and satin. Each one has its own benefits and drawbacks, so it is important to choose the one that best suits your needs. Gloss finish is the most durable, but it is also the most reflective. This can make it difficult to see in bright sunlight. The semigloss finish is less reflective than gloss, but it is still quite durable. It is a good choice for areas that receive moderate amounts of sunlight. The satin finish is the least reflective and also the least durable. However, it can provide a more natural look to the wood. It is a good choice for areas that do not receive a lot of sunlight.

Can you paint yacht varnish over wood stain?

Yes, you can put yacht varnish over the wood stain. However, it is important to make sure that the stain is fully dry before applying the varnish. Otherwise, you may end up with a sticky mess.

How long does it take for yacht varnish to dry?

The drying time for yacht varnish varies depending on the brand and the conditions it is used in. In general, you can expect it to take anywhere from six to eight hours to fully dry. However, it is always a good idea to read the manufacturer's instructions for the best results.

Can you thin yacht varnish?

Yes, you can thin yacht varnish if it is too thick. However, you should only use a thinner that is specifically designed for use with yacht varnish. Otherwise, you may end up with a poor-quality finish.

What is the best way to remove yacht varnish?

The best way to remove yacht varnish depends on the type of finish you have. If you have a glossy finish, you can use a polishing compound. For a semigloss or satin finish, you can use sandpaper. In general, it is best to remove yacht varnish with a power sander. However, you can also remove it by hand if you are careful.

Can I apply a new coat over the existing varnish?

Yes, you can apply a new coat of varnish over the existing varnish. However, it is important to make sure that the old coat is in good condition. Otherwise, you may not get the desired results.

Does yacht varnish go yellow?

Yacht varnish is designed to keep your boat looking good as new even throughout the season's hottest and coldest temperatures. The UV inhibitors prevent yellowing, which can otherwise occur due to exposure to external factors like sunlight or rainwater on a dock; they also remain slightly soft so that it will not crack when expanding or contracting with changes throughout each year. Liquids such as engine oils may cause blistering if left unprotected by an anti-blister agent like silicone lubricant (which contains graphite).

Is yacht varnish oil or water-based?

Yacht varnish is typically oil-based. This makes it more durable and resistant to fading. However, water-based varnishes are also available. These are less durable but easier to apply.

So which yacht varnish is right for you?

Choosing the right yacht varnish depends on how much time you want to put into maintaining your boat as well as its location. We stock a wide range of varnish suitable for any type of wood on your vessel.

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What’s the Best Varnish for Your Yacht?

Looking for the  best yacht insurance ? Buy your  sailing yacht insurance  online at Admiral Marine, or contact our expert team for advice.

Varnishing your yacht is an essential part of its care and maintenance. The benefits are twofold: yacht varnish protects your boat from the elements, while also giving it a beautiful shiny finish. But with so many different yacht and marine varnishes to choose from, it can be difficult to know which one is best for your boat.

In this article, we’ll run through some of the most popular types of yacht varnish on the market to help you choose the right option.

What is Yacht Varnish?

Yacht varnish is an extremely durable solvent-based coating that is designed to protect the wood that yachts are made of and stop it decaying over time. Most varnishes are made up of a penetrating oil, resin and solvent. Although most yacht varnish is applied with a brush, it is possible to buy yacht varnish spray.

Different Types of Yacht Varnish Finish

There are many different types of finish to choose from, so you’ll need to know a little about them to decide which is the best yacht varnish for you.

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Yacht Varnish Brands

There are various brands that produce yacht varnish. Here are a couple of the most popular:

Screwfix Yacht Varnish

Screwfix is a retailer in the UK that sells a variety of products, including hardware and building supplies. They may carry different brands and types of yacht varnish. Yacht varnish provides resistance to water, UV rays, and other environmental elements. Yacht varnishes often contain additives to enhance their durability and performance in marine conditions.

Ronseal Yacht Varnish

A durable, long-lasting marine varnish for wood that flexes with the movement of the wood and resists peeling and cracking. This varnish is slightly more pricey than the Screwfix varnish, but gets great reviews. You can buy the Ronseal brand of yacht varnish in B&Q and other retailers.

How to Varnish Your Yacht

Varnishing a yacht is fairly straightforward, if a little time-consuming. First you’ll need to carefully sand down the entire surface that you want to varnish to get it looking smooth. Then use a soft brush to wipe off any excess dust and debris, since you don’t want it getting trapped in the varnish.

Finally, use a paintbrush to coat the yacht with varnish. Leave it to dry for the recommended amount of time on the tin, then apply additional coats as required. Always check the instructions of your varnish type, and if unsure consult with an expert before starting.

Yacht varnish is solvent-based and contains toxic chemicals, which means it should not be used for varnishing animal enclosures (for example, rabbit hutches or reptile enclosures).

• What is yacht varnish used for? Yacht varnish is used for sealing and protecting wood on boats and yachts. It is also commonly used for outdoor items such as wooden doors, window frames or pergolas.
• What type of varnish is yacht varnish? Yacht varnish is a solvent-based outdoor varnish that is extremely durable. It is usually made up of tung oil and polyurethane resin. 
• What is the best varnish to use on a boat? The type of varnish that is best for your boat will depend on the type of wood your boat is made from and the finish you are looking for. Tung oil varnish is a safe bet for most boats, or you may prefer to use a one-part polyurethane varnish for added durability.
• What is the difference between yacht varnish and outdoor varnish? In general, yacht varnish dries quicker and is designed for marine conditions, so it’s likely to be more durable than outdoor varnish. However, yacht varnish is unlikely to have an anti-slip formulation, making it unsuitable for decking around the home.

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Choosing The Right Varnish

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This small boat is finished with Awlwood giving a crystal clear surface that shows off hte wood grain.

There are lots of different makes of varnish available, and you'd think that you could just walk into your nearest store and pick almost any can, right? Not so fast! There's more to choosing the right varnish than it might appear — choose the wrong sort and you could be left with an expensive mess.

Basically, there are three kinds of varnish: Oil based, usually made with tung oil as one of the main ingredients; polyurethanes, which generally have a synthetic-oil base; and two-part varnishes, which, as the name implies, is a resin base to which a hardener, or catalyst is added prior to application. Unless you're starting off from bare wood, the most sensible way is to use the same finish that was applied last time. The varnish will be compatible with what's on the boat already, and the color will be consistent. When varnishing bare wood, almost any varnish can be used, but read the instructions on the can carefully before starting.

Tung-Oil Varnishes

Old-time varnishes were boiled down from tree resin. Older-style varnishes tend to be thicker and may be made from a combination of tung oil, phenolic resins, and alkyds. Most of these varnishes were developed for furniture and only later used for boat masts. Given that a mast flexes in the wind, the varnish needs to move with it rather than crack. This gave rise to single-part, tung-oil-based varnish often referred to as "spar" varnish. With these, the varnish is dissolved in solvents, so it begins to harden as soon as it's applied. You can apply a second coat of tung-oil varnish before the first layer is totally hardened because the solvents will keep evaporating out of the underlying varnish layer. Jim Seidel, who retired as marketing manager of Interlux, says, "You need to be careful when applying tung-oil varnish on horizontal surfaces as you can lay it on too heavily and it feels dry, but depending on the thickness of the coating and temperature you're working in, it may trap solvent and can lead to alligatoring." These varnishes tend to give a slight yellow cast to the wood.

Polyurethanes

Oil-based one-part polyurethanes are made using chemicals similar to epoxy and can be used to cover clear epoxy resin. In fact, one way to build up layers fast is to coat the wood with epoxy and finish with three or four coats of high-UV polyurethane. Polyurethanes can be oil- or water-based. Oil-based polyurethanes tend to be harder, and last slightly longer, but they can also crack. When applying oil-based polyurethanes, you need to let one layer harden completely, then sand it lightly, before applying a second coat. Oil-based polyurethanes tend to give a slight yellow color to the wood.

Water-based polyurethanes are easier to clean up, but they're slightly softer and don't last quite as long as oil-based. Again the varnish needs to harden before applying a second coat. Water-based varnishes can be almost totally clear.

Two-Part Varnishes

Two-part varnishes need to be mixed before they're used. In most cases, the base and the hardener are in separate cans, and you simply pour the contents of one can into the other and stir well. The advantage of two-part polyurethane varnishes is that they last longer and are far more abrasion resistant. It is important to note that due to the very hard nature of the coating, a two-part varnish can't be applied over a one-part varnish, as they're incompatible with each other. The problem with two-part varnishes is that they only have several hours in which they stay liquid. (The "pot life" that the varnish stays useable can be from several hours up to two days.) Once the varnish is spread out on the job, it will begin to harden as air and moisture in the air act on it. These varnishes tend to be clear and need to be thoroughly dry before a second coat is applied. Steve Schultz, formerly with Interlux and now with EMC Quantum, says, "Two-part varnishes are a better choice because they last longer and reduce the labor required. In turn, this reduces the overall cost of varnish maintenance."

Two-part varnishes contain isocyanates, and while many are meant to be applied by a professional (with safety precautions) they can be brushed on provided the user wears a respirator. Isocyanates become a problem when they're sprayed because the fine particle size can affect the user's lungs. Brushing them, provided the user observes standard safety precautions (gloves, eye protection, and respirator), is preferable.

Commonly Available Varnishes

Single-part varnishes and coatings.

Awlgrip AwlSpar (for professional use only)

Bristol Finish Traditional Amber Urethane (exterior), Classic Clear Water Based Urethane (Interior only)

Detco Crystal Varnish (clear coat)

Epifanes Clear Varnish (Tung oil/Alkyd/max UV resistant), Rapid Coat (Alkyd/Urethane), Woodfinish (tung oil/urethane)

HMG Marine Coma Berenice (polyurethane/Alkyd)

Interlux Compass Clear (polyurethane), Schooner Gold (high build, high performance), Schooner (polyurethane), Goldspar Satin (modified polyurethane)

Le Tonkinois (Tung oil/linseed oil)

Minwax Helmsman Spar Urethane, Water based Spar Urethane 

Pettit Z Spar (linseed/Tung oil), Z Spar Flagship (linseed/Tung oil), Captain's Varnish (alkyd/phenolic/Tung/Linseed oil), Hi build (tung oil/phenolic/linseed oil), EasyPoxy (urethane)

PermaJet PermaPROtect GLO, SAT (water based polymer)

Signature Finish Clear Urethane

West Marine Brand Admiral's Varnish (alkyd), Five Star Premium (alkyd), WoodShield (synthetic wood finish)

Awlgrip AwlBrite Clear (for professional use only)

Alexseal Clear (for professional use only)

EMC Quantum UV Varnish

Interlux Perfection Plus (Clear polyurethane)

Signature Finish Honey Teak (Urethane Enamel top coat)

Pigmented Oil-Based Coatings

Owatrol Marine Deks Ole

Minwax Teak Oil

Sikkens ProLuxe Cetol Marine

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Roger Marshall is a writer and yacht designer who lives in Rhode Island.

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PROTECT & BEAUTIFY BRIGHTWORK

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CHOOSE GLOSS OR SATIN FINISH

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Choose a classic, clear amber gloss, clear gloss, or clear satin finish

TotalBoat Halcyon marine gloss varnishes give you a choice on how to finish your brightwork or other marine woodwork: crystal clear, or with a slight amber tone. Both finishes accentuate the wood grain, and eliminate the cloudy haze associated with applying multiple coats of other wood finish products. Halcyon and Halcyon Clear Gloss also offer greater clarity, abrasion resistance, and UV protection than traditional marine varnishes. Want the clarity, durability and UV protection without the gloss? Our new Halcyon Clear Satin varnish is ideal for creating a sleek satin finish that’s perfect for interior and exterior wood. For the best finish and depth, just apply build coats of Halcyon amber or clear gloss, and use Halcyon Clear Satin for the final coat.

Get your gloss (or satin) on in hours – not days or weeks

Compared to conventional varnish, TotalBoat Halcyon Water-Based Varnishes provide a fast application, faster drying times, and the fastest, easiest cleanup so you can finish varnishing your brightwork in a matter of hours. No more days and sometimes weeks of stripping off old varnish, coating, waiting hours for it to dry, sanding, recoating, more waiting, and more sanding until the gloss or satin finish is truly finished. Halcyon Marine Varnish adheres so strongly, and dries so quickly there’s not much time for the dust to settle. You can recoat in as little as 1 hour at 72°F. Finish faster, set sail sooner, and enjoy your boat and the compliments you’ll get on your beautiful, glossy brightwork. Halcyon means happy, which is what you’ll be while using it due to its low, low VOC content and no noxious fumes. You’ll be really happy when you see how easy it is to maintain the beauty with just 1 to 2 quick coats annually.

The only thing hard about it is the finish

When it comes to varnish coatings, hardness affects durability. TotalBoat Halcyon is very hard for a one-part varnish, and is made to last. It resists scratches and abrasion without yellowing, gloss loss, lifting, cracking, clouding, dead spots, and other issues commonly associated with conventional oil-based varnish. To develop an easy-to-use, eco-friendly marine varnish hard enough and UV stable enough to withstand assault from humans and harsh weather, flexible enough to move with wood as it expands and contracts with weather and use, fast drying to allow multiple coats (up to 5!) in one day, with very little odor, an extremely low VOC level that practically ensures compliance (always check local regulations, of course), and easy soap and water cleanup, we had to think so far outside the box, we ended up thinking outside the can, too, and put Halcyon in a resealable, airtight bag. This way, it won’t skin over while in storage, nothing gets wasted, and it’s always ready to use. With Halcyon’s ease of use and convenient packaging, glossy beautiful brightwork is truly in the bag.

Easy to get along with, and works well with others

TotalBoat Halcyon’s advanced water-based formula is simple to use and very forgiving, producing beautiful, consistent, level results with just a foam brush. It flows on easily and is much easier to work with than oil-based varnishes, synthetic marine wood finishes, and even other waterborne marine polyurethane finishes. Best of all, Halcyon is compatible with other 1- and 2-part varnishes, so it can be applied over properly prepared existing varnish that’s in good condition – no need to strip off the old varnish first, which will save a lot of time and elbow grease. Here are a few more ways Halcyon varnishes make the task of varnishing brightwork and other woodwork easier than ever:

• Easy surface prep, just clean, sand, and wipe bare wood or previous varnish in good condition.
• Easy to pour, no mess.
• Easy to store, resealable bag prevents waste and ensures varnish is ready to use when you need it.
• Easy to work with, no mixing or measuring, no thinning, easy to apply, dries phenomenally fast.
• Easy to recoat, after it dries, just apply another coat—without sanding first, within 12-hour window.
• Easy on the eyes, with a beautiful, long-lasting, UV-stable gloss that resists scratches and abrasion.
• Easy on the nose, doesn’t stink! (unlike conventional oil-based varnishes or synthetic marine finishes).
• Easy on the environment, very low VOC content limits exposure to volatile organic compounds.
• Easy to clean up, just use soap and water.
• Easy to keep clean, just wipe down cured varnish with water.
• Easy to maintain, just clean, scuff-sand, and apply 1-2 quick coats annually.

More Halcyon Varnish Details

• Dries to a hard but flexible amber gloss, clear gloss, or clear satin finish on all types of wood.
• No mixing or measuring, and won’t skin over while you’re using it.
• Easy to apply by brush, roller, or spraying – no thinning necessary.
• Allows rapid recoating in just 1 hour @ 72°F – no sanding between coats (up to 12 hours).
• Apply up to 5 coats in 1 day, finish faster, and set sail sooner.
• Multiple coats of Halcyon Varnish provide the preferred, rich amber tone of a classic, marine spar varnish.
• Halcyon Clear Varnish imparts a natural-looking finish to light-colored woods & accents the grain and character of darker woods.
• Use Halcyon Satin as a final coat over Clear Gloss or Clear Amber Gloss for a sleek satin finish.
• Extremely low VOC content of less than 75 g/L.
• Low odor means no harsh fumes, making it great for indoor use.
• Excellent UV protection, abrasion resistance, and gloss retention make it ideal for exterior use.
• Long-lasting, hard finish resists scratches, solvents, and abrasion.
• Comes in a resealable pouch that prevents skinning over and product waste
• Water-based formula means easy cleanup with just soap and water.
• For interior use and exterior use above the waterline.
• Compatible with 1-part and 2-part varnishes.
• Cured Color & Finish: Halcyon/clear amber gloss, Halcyon Clear Gloss, Halcyon Clear Satin
• Sizes: Pint, Quart, and 4 Quarts
• NOTE: Satin finish is not available in 4 Quart size

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SEE HOW EASY IT IS TO USE HALCYON WATER-BASED MARINE VARNISH

TECHNICAL DATA

• Application Method: Brush, Roll & Tip, or Spray
• Application Temperature/RH: 50-90°F; relative humidity 0-90%
• Number of Coats: 2-3 coats (minimum)
• Wet-Edge Working Time: 45-90 seconds
• Dry Time to Recoat: 1 hour @ 72°F
• Overcoat Without Sanding: Up to 12 hours
• Accelerated Application: A maxiumum of 5 coats per day, if desired. Always wait 12 hours after applying Halcyon or Halcyon Clear, and before sanding.
• IMPORTANT APPLICATION NOTE FOR HALCYON CLEAR SATIN: To ensure the best finish clarity and depth, we strongly recommend that you use Halcyon Clear Gloss or Halcyon Amber Gloss for build coats, and use Halcyon Satin only as a final coat.
• Finish: Gloss (Clear or Amber); Satin (Clear)
• Gloss DOI (Distinctness of Image): >90% @ 60°; >77% @ 20°
• Product Color (Uncured): Milky white, with a pinkish tinge
• Finish Color (Cured): Halcyon (clear, slight amber), Halcyon Clear Gloss and Clear Satin (clear)
• VOC Content: Less than 75 g/L
• Coverage: 80-100 square feet per quart (3 mils wet)
• Thinner: Not required — even for the first coat. To create desired flow, thin with water up to 20% maximum
• Surface Prep Solvent: Denatured alcohol (only on bare wood, or after 24 hours)
• Cleanup: Soap and water
• Application methods:
• Application temperature/RH:
• Number of coats:
• UV resistant?
• Units of measure:
• Best for: A natural-looking finish on brightwork, wooden canoes, kayaks, signage, artwork. Easy cleanup with soap and water.
• Finish: Gloss, Satin (Low Sheen)
• Color: • Halcyon Amber Gloss - Clear gold/amber • Halcyon Clear Gloss - Clear, with very slight amber undertones • Halcyon Clear Satin - Clear, with very slight amber undertones
• Application methods: Brush, Roll & Tip, or Spray
• Application temperature/RH: 50-90°F; 0-90% RH
• Number of coats: 2-3 (minimum)
• Thinner: Water (up to 20%, but is usually not needed)
• Cleanup: Mild soap and water
• Coverage: 80-100 sq ft/qt @ 3 mils wet
• UV resistant? Yes
• Units of measure: Pint, Quart, 4 Quarts. NOTE: Satin finish is not available in a 4 Quart size.
• Brightwork on boats, strip canoes, kayaks
• Gloss, Satin
• Clear amber
• Brush, Roll, or Spray
• 45-105°F; 0-85% RH
• 4-6 (minimum)
• TotalBoat Special Brushing Thinner 100 for brushing and rolling applications; TotalBoat Spray Thinner 101 for spraying and cool weather brushing/rolling applications
• TotalBoat Dewaxer & Surface Prep or TotalBoat Special Brushing Thinner 100 or TotalBoat Spray Thinner 101
• 360-400 sq ft/gal @ 3 mils wet
• Pint, Quart Kit, 2 Quart Kit, Gallon Kit
• Rapid recoating, without sanding between coats. Great for brightwork, wooden canoes and kayaks.
• High Gloss, Matte
• 6-8 coats (minimum)
• High Gloss or Satin - Pint, Quart, Gallon, 2 Quart Kit; High Gloss and Satin - 2 Quart Combo Kit

Wood Sealer Varnish Primer

• Pre-varnish treatment for 1-part varnish. Seals wood so varnish is available for the finish coats - no sanding needed between coats.
• 2-3 (typically)
• TotalBoat Special Brushing Thinner 100, for brushing and rolling applications; TotalBoat Spray Thinner 101, for spraying and cool weather brushing/rolling applications
• 60-100 sq ft/qt @ 3 mils wet
• Yes, but needs to be coated with varnish.
• Quart, Gallon

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• TotalBoat Halcyon Varnish – All Finishes – Technical Data

FREQUENTLY ASKED QUESTIONS

Can I apply Halcyon over TotalBoat Gleam Varnish or Lust Varnish?

Can you apply halcyon over other varnishes, is halcyon more durable than regular oil-based varnishes, can this water-based varnish be applied over epoxy resin, can it be used on teak, is this water-based varnish durable enough for the brightwork on my boat, how do i apply halcyon, does it need thinning, can it be sprayed, does halcyon dry clear, do i have to stir this varnish before using, what is the working time, how many coats do i need to apply, how long do i need to wait before recoating, what is the coverage of this water-based varnish, how do i maximize the performance of halcyon water-based varnish.

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5 Best Yacht Varnishes of 2024

What Is The UK’s Best Yacht Varnishe?

In this guide we’ll look at the best yacht varnishes for the UK market. We’ve compared tin size, coverage per litre, recoat time and cost to give you our top recommendations.

Editors Choice

Johnstone's woodcare outdoor yacht varnish.

Paintmaster Trade Yacht Varnish

Rustins Satin Yacht Varnish

1. Johnstone's Woodcare Outdoor Yacht Varnish

2. paintmaster trade yacht varnish, 3. rustins satin yacht varnish, 4. epifanes clear high gloss yacht varnish, 5. ronseal satin exterior yacht varnish, yacht varnishe reviews.

British paint giants Johnstone’s have a history dating back to 1890 and make some of the most trusted and best exterior wood varnish products available right now. We’re familiar with their amazing range of colours and finishes, so it made sense to test out their Woodcare Outdoor Yacht Varnish .

It’s another yacht varnish with excellent coverage per litre, even though it goes on quite thick. If you key each coat with wire wool or an exceptionally fine grit sandpaper once it’s dry, you’ll get as good a finish as possible. We got on well with this varnish, it cures to a smart finish that is hard and clear.

Paintmaster offer great savings to trade customers and savvy DIYers by cutting out the middleman when it comes to buying the best yacht varnish , available in tins up to a whopping 205 litres. You might not need that much to treat the woodwork around your home, even if the coverage isn’t quite as impressive as some of the others on the list.

This no-nonsense yacht varnish has a super-quick touch dry time of just an hour, and the solvent based formulation promises to expand and contract with the wood underneath it, to minimise cracking and bubbling. It goes on well with a brush and looks great once cured.

Originally based in London’s Shoreditch area in the heart of the furniture making industry, Rustins know a thing or two about making the best exterior varnish for wood. We knew we had to try out their yacht varnish , so we got hold of a tin and put it through its paces.

It’s developed to give a durable finish to exterior timbers, with added tung oil that dries to a high shine. We love the almost wet look you get from this product, it’s the best satin yacht varnish we’ve used so far.

With a strong tradition of boat building and high expectations from their protective coatings, you can count on Dutch specialist paint manufacturer Epifanes to create the best yacht varnish. And they’ve been doing so since 1902.

We really like their High Gloss Clear Varnish , it’s not the cheapest option but you certainly get what you pay for. Designed for use on boats, it uses a blend of tung oil and resins to build up an ultra-tough and glossy surface that will protect your wood surfaces for years, whatever the weather. It’s easily the best clear yacht varnish on this list.

British protective coatings brand Ronseal have made a name for themselves by producing products that do exactly what they say on the tin. This solvent-based weatherproofing varnish is the perfect solution for exterior timbers like windowsills that need the best outdoor varnish on them.

Ronseal’s Yacht Varnish promises the best coverage on the list, so when we tested it out, we were happy to agree that a little goes a long way. Once several coats had been applied to prepared timber, it cured to a handsome satin finish that looked great.

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Crystal Clear Exterior Varnish Trade

Adds protection to wood without changing its colour. Protect against the weather preventing cracking and peeling.

• Won’t yellow like traditional yacht varnish
• Touch & durable
• Water based
• For exterior wood
• Non yellowing formula
• Touch and durable

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How much varnish do I need?

Measure your area precisely, drop the numbers into this smart calculator and it will tell you straight away how many litres you'll need to complete your project.

How to use Crystal Clear Exterior Varnish

Sand the wood using 120 grit paper. Wear a mask to avoid inhaling any dust. Don't use in temperatures lower than 10°C. Stir well before use and test on a small area to check you are happy with the finish. It's off white in the tin but it dries clear.

Use a synthetic brush and apply 3 coats in the direction of the grain. Leave 6 hours between each coat and lightly sand using 240 grit paper before the final coat.

Remove any varnish from your brush and wash in warm, soapy water. Don't put any left over varnish down the drain or into watercourses. Your local authority may have facilities to get rid of unused varnish.

Safety Data Sheet

• Ronseal Trade Crystal Clear Exterior Varnish Safety Data Sheet.pdf
• Ronseal Trade Crystal Clear Exterior Varnish Technical Data Sheet.pdf

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Flag Yacht Varnish

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In general we sort colours for products into 2 main groups - ‘Ready Mixed’ and ‘Tinted’. Tinted colours will always be more expensive than Ready Mixed colours as they need to be produced at the time of order using a tinting machine dispensing colourant into a base*. During busy periods, this means that tinted colours could take longer, for example – a ready mixed colour ordered on a 3-5 day delivery might arrive within 3 days, however a tinted colour might take the full 5 days to arrive.

To find Ready Mixed colours, search "ready mixed" or select the Ready Mixed 'colour chart'. To see Tinted colours select a colour chart such as RAL, BS, NCS, etc. or search for a colour/hue to see available or related options.

To ensure fair pricing, we split colours into ‘Price Bands’ to group together similar priced colours. If you wish to search for the cheapest tinted colours, always select Price Band 1.

We make every effort to list all available colours, however we also offer a colour match service which can be accessed by contacting our Technical Team on 0113 245 5450 (option 2) or emailing [email protected]

*Colours are sold in the nearest tin size but actual paint volume per tin may vary up to 10% depending on colour

Colour reproduction of the Products on the Site is limited by the technology used to deliver web pages and by the colour representation of Customer’s own monitor and computer set-up. We have made every effort to display as accurately as possible the colours of our Products but we cannot guarantee that the colour shown on Customer’s monitor’s display will accurately reflect the colour of the Product on delivery. We recommend that Customer first purchases the smallest Product available or access an industry standard colour chart in person (and not digitally) to ensure that the colour is acceptable for its purposes.

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Flag Yacht Varnish is a highly durable exterior gloss varnish b ased on premium quality resins which has good weathering and UV resistance, p roviding a tough and flexible finish. It is non-yellowing with excellent coverage.

For use on all exterior wood Flag Yacht Varnish is s uitable for marine applications, also doors, window frames, furniture and floors. 

Features & Benefits

• Highly durable exterior gloss varnish
• Based on premium quality resins
• Good weathering and UV resistance
• Provides a tough and flexible finish
• Non-yellowing with excellent coverage

Safety Data Sheet

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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Important shipping & delivery information.

Flag Yacht Varnish is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT

Dulux Trade Weathershield Yacht Clear Gloss Wood varnish, 1L

Sold & shipped by B&Q

Product details

Product information.

Perfect for a highly durable & flexible solvent-based coating for the decoration & protection of exterior woodwork, this clear yacht varnish from Dulux Trade can be applied to exterior using a brush. The low odour, non yellowing varnish takes 6-8 hours to dry and will cover up to 16 m² per litre on average.

• A highly durable & flexible solvent-based coating for the decoration & protection of exterior woodwork.
• Surface Preparation - Ensure surfaces to be varnished are sound, clean & dry (new surfaces must be fully dry)

Features and benefits

• 3 years protection
• Highly durable and flexible coating
• Protects against strong sunlight

Legal Information

• Flammable liquid and vapour. May cause drowsiness or dizziness. Contains IPBC. May produce an allergic reaction. Warning! Hazardous respirable droplets may be formed when sprayed. Do not breathe spray or mist.

Health and safety

Please note that this item has additional safety or regulatory datasheets available. The product may have possible health and safety hazards covered in these documents. Refer to the container for full information and always follow the instructions.

Specifications

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Internet # 202558038

Model # 207008, rust-oleum marine, 1 qt. clear gloss spar varnish coatings (6-pack).

• Protects the exterior surface on boats from salt, UV and mildew
• Varnish will expand and contract with changing weather conditions
• Flexible top coat dries fast for above the waterline protection
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Free & Easy Returns In Store or Online

Return this item within 90 days of purchase.

Product Details

About this product.

Rust-Oleum Marine Coatings Spar Varnish is exterior polyurethane for wood surfaces above the waterline. It provides a warm golden glow that enhances wood's natural beauty while protecting it from UV, salt and mildew. It's tough, flexible, long-lasting coating expands and contracts with changing weather conditions.

• Apply to fiberglass, wood or metal surfaces above the waterline
• Covers up to 125 sq. ft. per Qt.
• Gloss clear
• Protects from UV, salt and mildew
• Clear, oil modified urethane expands and contracts with changing weather conditions
• Provides long-lasting protection and a brilliant glossy finish on fiberglass, wood or metal
• Dries to the touch in as little as 2 hours
• Cleans up with mineral spirits
• Online price includes PaintCare fee in the following states: CA, CO, CT, DC, ME, MN, OR, RI, VT, WA
• Return Policy
• California residents   see Prop 65 WARNINGS

Product Information

Additional resources, from the manufacturer.

• Use and Care Manual

Specifications

Container Size : 1 Quart

Warranty / Certifications

Questions & Answers

A:  Happy to help, Jay. Yes, a new coat of Rust-Oleum Marine Coatings Spar Varnish can be applied years after applying the previous coat. To ensure for the best adhesion be sure to lightly sand the surface to help create a surface profile. -Rust-Oleum Product Support 14

A:  Thank you for reaching out! While Rust-Oleum Marine Coatings Spar Varnish is great for exterior wooden surfaces, we do not recommend it for use on surfaces below the waterline. The immersion in water will cause the coating to blister and peel. - Rust-Oleum Product Support 3

A:  Happy to help! Rust-Oleum Marine Coatings Spar Varnish can be applied to stained wood surfaces and can be used on handrails and posts. - Rust-Oleum Product Support 3

A:  Happy to help Steve. Rust-Oleum Marine Coatings Spar Varnish dries to the touch in 2 hour, dries to handle in 4-6 hours and can be recoated in 8 hours. Allow the finish to dry 24 hours before light use. Wait 3 days before subjecting the surface to normal usage. A minimum of three coats are recommended. - Rust-Oleum Product Support 6

Customer Reviews

4.9 out of 5

• 4.9 out of 36 reviews
• 100 % recommend this product
• Verified Purchase
• Recommended

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1 qt. Gloss White Topside Paint (4-Pack)

This Rust-Oleum Marine Coatings 1 qt. Gloss Oil-Base Gloss White Topside Paint features an oil-based formula that applies easily to fiberglass, wood and metal surfaces above the waterline. Topside Paint dries to the touch in as little as 2 hours and can be used on small pleasure craft including speedboats, sailboats and fishing boats. This high performance coating provides excellent color retention, UV resistance, flexibility and durability in extreme conditions.

1 qt. Flat Blue Boat Bottom Antifouling Paint (4-Pack)

Rust-Oleum Marine 1 qt. Blue Flat Boat Bottom Antifouling Paint (Case of 4) is a hard antifouling coating that slowly releases copper, preventing the build-up of barnacles, algae and other marine growth on boat bottoms. This coating is ideal for powerboats, racing boats or other boats that are regularly hauled and cleaned. Rust-Oleum Antifouling Paint can be used on both trailered boats and boats that remain in the water all season or all year long.

1 qt. Flat Black Boat Bottom Antifouling Paint (4-Pack)

Rust-Oleum Marine 1 qt. Black Flat Boat Bottom Antifouling Paint (Case of 4) is a hard antifouling coating that slowly releases copper, preventing the build-up of barnacles, algae and other marine growth on boat bottoms. This coating is ideal for powerboats, racing boats or other boats that are regularly hauled and cleaned. Rust-Oleum Antifouling Paint can be used on both trailered boats and boats that remain in the water all season or all year long.

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SYMPHONY CLEAR YACHT VARNISH

£ 29.40 inc. VAT

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NBVARNISH/1

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Difference Between Spar Varnish and Regular Varnish?

Article - October 20, 2008

This article was inspired by a question from K Sanchez who writes: “What is the the difference between spar varnish and regular varnish?”

Why We Need Outdoor Formulations

Before we dig into the details, let’s talk about why we need a different varnish for outdoor applications. Any wood stored outside is going to be exposed to a wide range of temperatures and weather, as well as a good dose of damaging UV rays. These elements serve to break down the finish over time. Furthermore, changes in humidity cause the wood to expand and contract, and a standard indoor finish would simply crack and deteriorate under these conditions. Spar varnishes are typically designed to not only protect the wood, but also give it the flexibility and UV protection it needs to last for years. And the name “spar varnish” comes from the boating world, where the long wooden poles that support the sails are know as spars. So a spar varnish needs to be one that can withstand the rigorous conditions of seafaring life.

The Components

Nearly all modern varnish contains a few basic components: oil, resin, and a solvent . By modifying the types and amounts of these components, we can create a whole range of mixtures that vary in price and are specifically suited for either indoor or outdoor use. Fortunately for the inquisitive finisher, there are only so many ingredients that manufacturers have to choose from. And this makes it easier to see beyond the marketing jargon to deduce how a particular finish will behave. Here are the most common recipe ingredients:

Oils – Linseed Oil or Tung Oil Resins – Alkyd, Phenolic, or Polyurethane Solvents – Mineral Spirits, Naptha, or Paint Thinner

Oil to Resin Ratio

When a varnish is made, the ratio of oil to resin can have a dramatic effect on the way the varnish will behave. For instance, using a small amount of oil and a large amount of resin will produce a very hard but somewhat brittle finish. Obviously, this is not suitable for outdoor applications since we need an outdoor finish to be flexible. So what makes more sense is to create what is known as a “long-oil varnish”, that is, a formulation that contains a greater percentage of oil. The extra oil results in a softer, more flexible finish that will not crack when the wood expands and contracts.

The most common oil used to make varnish is linseed oil. Its lower cost makes it the most practical choice for both indoor and outdoor formulations. But many believe that tung oil is actually better for outdoor use. After all, a higher quality oil should equate to a higher quality varnish, and thus a higher price tag. As a result, many of the high-end marine varnishes will be made with tung oil instead of linseed oil.

Resin Types

Sun block for wood.

Most spar/marine varnishes will contain other important additives, such as UV blockers, that give the wood that extra bit of protection it needs in harsh conditions. UV light will not only damage the wood, but also the finish itself, eventually resulting in finish failure. So its a good idea to use a finish containing UV-blockers for any outdoor project.

Hopefully this helps elucidate the difference between spar varnish and regular varnish. Generally-speaking, my preferred outdoor varnish would be a long-oil varnish made with tung oil and at least some phenolic resins and UV inhibitors. And most times the brand I reach for is Epifanes .

Helpful Links

• How I like to apply varnish: A Better Way to Apply Spar Urethane .
• How to make your own outdoor oil/varnish blend
• Wiping Varnish Shootout
• A Simple Varnish Finish
• A look at outdoor finishes and how they fare over time: Outdoor Finishes Real World Results
• How to Avoid Tear-Out?
• Finish for a Bathroom Vanity?

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This site uses affiliate links. Given this, please assume that any links leading you to products or services are affiliate links that we will receive compensation from. However, there are millions of products and services on the web, and I only promote those products or services that I would use personally. The Wood Whisperer abides by word of mouth marketing standards and holds integrity in the highest regard. Should I ever be compensated to write, I will make full disclosure. I always give honest opinions, findings, and experiences on products. The views and opinions expressed on this blog are purely our own. Any product claim, statistic, quote or other representation about a product or service should be verified with the manufacturer, provider or party in question. All content on The Wood Whisperer is copyrighted, and may not be reprinted in full form without my written consent.

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Fortress Trade 750ml Clear Gloss Solvent-Based Exterior Yacht Varnish   ( 326PC )

• Dries in 16-24 Hours
• Tough & Durable
• Scratch-Resistant

Fortress Trade 2.5Ltr Clear Gloss Solvent-Based Exterior Yacht Varnish   ( 695PC )

5L Vintage Varnish Polyurethane Yacht Varnish – Clear Varnish Wood... › Customer reviews

Customer reviews.

5L Vintage Varnish Polyurethane Yacht Varnish – Clear Varnish Wood Protects from Scratches – Easy Application Decking Paint Gloss Varnish – Quick Drying Non-Yellowing Formula

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Durable protection for interior and exterior timber.

Sadolin Outdoor Varnish

• For windows, doors and conservatories
• Maintain and enhance the natural colour of wood
• Durable, resists peeling and flaking
• Added UV protection

Sadolin Yacht Varnish

• Enhance the natural colour and beauty of wood
• Traditional varnish with added UV protection
• Highly durable, resists peeling and flaking

Sadolin Polyurethane Extra Durable Varnish

• Extremely tough and hard wearing
• Touch dry in 2 - 4 hours
• Non yellowing

Sadolin Polyurethane Floor Varnish

• Touch dry in 1 hour

Sadolin PV67 Heavy Duty Varnish

• Hardwearing
• Slip and scratch resistant
• Ideal for bar tops or heavy traffic areas

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Our company produces resins, gelcoats and pigment pastes for the composite industry; these high quality products have high quality and wide usage areas such as automotive, transportation, marine, aviation, defense, construction, energy, entertainment, furniture, etc. These products provide high chemical and mechanical resistance, aesthetic appearance, ease of production and price advantage.

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Yacht Varnish

Erco yacht varnish is a one-component, transparent, non-yellowing varnish for indoor and outdoor use. It is resistant to chemicals and has high UV resistance.

Product Features

• PRODUCT NAME
• PRODUCT DESCRIPTION
• CHEMICAL STRUCTURE
• DUST FREE, HOURS (20°C)
• TOUCH FREE, HOURS (20°C)
• TOTAL DRYING, DAY(20°C)
• PRODUCT PROPERTIES
• RECOMMENDED USE
• APPLICATION RECOMMENDATIONS
• PACKING SIZE
• S50-XX-0000
• Modified alkyd based, one component synthetic semi-matte yacht varnish.
• High scratch and abrasion resistance, High UV resistance, water and chemical resistance For decorative and protective purposes on interior and exterior wooden surfaces
• Furniture for interior use, MDF, massive and chipboard surfaces
• Dip, brush or spray
• It can be storaged up to 12 months in the unbroken original package, the temperature between the 5-35◦C and do not expose direct sunlight
• 0,75L / 2,5L / 12kg
• Modified alkyd based, one component synthetic glossy yacht varnish.
• These varnishes are scratch and abrasion resistant, hard, elastic and high glossy film surfaces. It protects the applied surface against UV rays, water, detergents and household chemicals. It is used for decorative and protective purposes on all kinds of wooden interior and exterior surfaces of marine vehicles and buildings.

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