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marine varnish vs polyurethane

Susan Rhoades. Polyurethane is a water- or oil-based plastic resin used for coating wood or as a wood finish. Marine Spar Varnish. Last but not least, every spar varnish needs to protect itself and the underlying wood from the sun. Blog Marcus Gatley. Even the humidity in the air will make wood swell and since a polyurethane is a harder finish is more likely to crack because of the weather. With polyurethane varnish, you get a clear and hard finish that comes in gloss, satin, or matte. Pros: Cetol is easier to apply than varnish (put on 3-4 coats, no work in between coats) It's easier to remove than varnish ; It lasts 2-3 years before you need to re-touch (varnish lasts 6-12 months) Cons: in general, varnish has a deeper and richer look vs. cetol The ravages of time and use of a piece of furniture can be limited by a durable top or finish coat. Helpful. Polyurethane varnish is highly durable. It comes in three shades; Cetol Marine, Cetol Marine Light, and Cetol Marine Teak. While polyurethane is water- or oil-based plastic resin, varnish is older and made from resins, oils, and solvents. You may also think of polyurethane as urethane, but they are actually two different components. This type of finish can significantly outlast varnish alone, but unlike a two-part polyurethane finish, it needs frequent recoating. Unlike polyurethane, varnish is designed for outdoor projects and is not typically used for indoor surfaces such as a hardwood floor. But, to my eye, this looks almost as nice as varnish. The other major distinction to look for in a varnish is the use that it is created for. Varnish is typically a glossy finish, but flattening agents can be added. Most likely the clear sealer or polyurethane will end up peeling and flaking off the stain. There are many clear wood finishes on today’s market. This article compares the two in terms of pros and cons, application and equipment, and maintenance and clean-up. Water-based polyurethane can have less of an offensive odor when compared to oil-based products, but floors require at least four coats to achieve the desired level of protection. In the case of air drying polyurethane varnishes the vegetable oil is reacted with isocynates & polyols instead of the phthalates & polyols. Top coating polyurethane with marine varnish on exterior doors. Varnish, whether it contains alkyd or polyurethane resin -- or a combination -- is an example of a curing finish. Many woodworkers turn to oil-based polyurethane because it is the more durable out of the two options. Piffin. Spar Urethane vs Polyurethane: Difference – Pros – Cons. Can i just apply a very thin coat of Marine Spar varnish over the door without lightly sanding down the old varnish? We use it on wood that will receive much wear and tear like flooring. Purchasing one with maximum UV (Ultra Violet Light) protection is important. 5 Shares. Most varnish is created for indoor use, where the wood and the varnish on it are protected from weather and ultra-violet light. on Jun 6, 2017. There are plenty of products that are truely varnish that don't have polyurethane as an ingredient. Regular polyurethane and varnish contain little, if any, UV blocking additives, and that alone makes them a poor choice for exterior application. ... Varnish vs Polyurethane -Wood Finish Pros & Cons. Marine spar varnish and exterior polyurethane finishes usually soak into the wood a little bit, but mainly build up on the surface. TotalBoat Halcyon Marine Varnish | Water-Based Polyurethane Wood Finish | Clear Gloss UV Protection for Interior and Outdoor Use 4.7 out of 5 stars 62 $17.99 $ 17 . Member Since: 11/06/02 ... polyurethane vs. tung oil. Polyurethane vs Urethane vs Shellac. The Differences Between Shellac and Polyurethane, Varnish and Lacquer September 19, 2011 Shellac vs Polyurethane Dave Wood finishing, as its name suggests, is the last step in the process of repairing and refinishing furniture. Comparing a highly modified alkyd base like the MinWax Spar Varnish (which truly sucks compared to real varnish) to a fast drying polyurethane just isn't comparing apples to apples. For marine use, where sunlight (UV) can damage the wood and the finish, UV absorber chemicals are added to spar varnish to slow the UV damage. Spar varnish, sometimes referred to as marine varnish is created specifically for outdoor use. Here's the trade-off. Pin 1. Spar urethane vs. polyurethane can be a difficult debate, but polyurethane typically wins when it comes to indoor applications. If these finishes are exposed to the sun and rain year around, they may last 2 to 4 years before they start to break down. Then there are different grades of spar varnish. I would use a marine grade spar. Studying spar varnish vs spar urethane – the differences we come to the conclusion that both these components are used for similar reasons. Polyurethane vs. Varnish. Take a bristle or preferable an ox hair brush, and brush the varnish on brushing in one direction going from dry to wet. Cetol Marine can be applied anywhere that you would use varnish, but is particularly suitable for areas that endure hard use—grabrails, swim platforms and ladders, or the cockpit sole, where it produces a surprisingly durable and non-slip finish. Be sure to stir well when using these flattening agents. Get marine varnish vs polyurethane! This gives chemical bonds that are superior for chemical & water resistance. It is semi-thick, tends to flow off brushes nicely, imparts a warm amber color to surfaces, and is easy to re-apply over old varnish providing that the old varnish is not too badly degraded. It was sanded, stained and finished with Marine Spar Varnish. Water-based spar urethane has easy cleanup, less fumes and dries in a short time period. Reply. If you want real varnish, then you have to accept it will take all damn day to dry, but it's an honest coating, easy to repair, over coat, blend, etc. Polyurethane: Polyurethane is a finish/sealant that has a very similar application and appearance to varnish, and therefore the two are often used interchangeably. Varnish vs. Polyurethane November 29, 2016 by jim 1 Comment Here is a great article TinBoats member Johnny put together to highlight the difference between Varnish vs. Polyurethane. 03:09PM | 04/08/03. This can be beneficial for wooden surfaces, as they will be able to bend and expand and contract as needed. Behlen Rockhard, Pratt & Lambert 38, McCloskey Heirloom, Ronan Quick Rubbing Varnish. Polyurethane Varnish Polyurethane Clear Finish (Amazon) Polyurethane varnish creates a tough surface once cured. Without UV protection, varnishes and wood quickly break down and fail. Wood varnish is an effective means to ‘wear-proof’ any wooden materials on your sailing vessel, ensuring ongoing protection from water damage, mould, and mildew. Shop a huge collection of marine varnish vs polyurethane for sale. The idea here is that the epoxy adheres better than varnish and is less likely to separate from the wood. Spar Varnish. It has a high degree of heat resistance, as well. Traditional varnish (sometimes called Spar Varnish or Marine Varnish) is a resin in an oil base with solvents. While the latter is more concentrated and is limited because of the same, the former is more conventional in nature and can be used more extensively. It is an elastic, durable and easily processable substance, well suited for wire and cable coatings, engine tubing, drive belts, hydraulic hoses and … Marine (boat) varnish is spar varnish with ultraviolet-light absorbers added to resist penetration by UV rays. Because of the higher ratio of solids, varnish is less susceptible to ultraviolet light damage. Thermoplastic Polyurethane (TPU) Another polyurethane material great for use in the maritime industry is thermoplastic polyurethane, or TPU. Marine spar varnish with UV protection. Tweet. As a woodworker, you will come across situations regularly where you have to apply finish to wooden surfaces. They are very similar and some people even use the phrases interchangeably. Because of its composition it is can allow wooden surfaces to maintain their flexibility. Like polyurethane, Varnish is a curing finish. 99 - $119.99 $ 119 . Oil-based spar urethane requires several hours between coats. Spar varnish must be reapplied periodically as it will chip, flake or chalk off over time. ... Buy two quarts of Marine varnish one gloss and the other the sheen of your choice. Once applied, varnish protects the surface of the wood and imparts a glossy finish. It creates a finish that looks shiny … Varnish is an older type of finish made from resins, oils, and solvents, but very often, the term "varnish" is misused as a generic name for all types of wood finishing. The drying mechanism is identical however Oil-based polyurethane is a highly durable finish, but it is also easy to apply. It has natural UV protecting properties. Great job. Spar marine varnish is a natural oil based product that is designed to protect wood. Varnish is a hard, transparent topcoat that we use to coat wood. Share 4. We all know that furniture has to be protected especially wooden ones and if you leave it outdoors to stay all the time. I am building a surround for a large soaking tub. While polyurethane is a synthetic material, tung oil stain is organic and made from the pressed seed extract of the tung tree. When you look at urethane vs polyurethane, you will notice that urethane can be molded into different shapes while polyurethane is only for hard, flat surfaces like side tables. Many marine varnishes are made with phenolic or polyurethane resin and tung oil because these provide the best resistance to water. Lowes sells a Cabot brand marine grade spar that is pretty good but the best would be Epifanes. 99 Traditional Varnish and Polyurethane Toxicity Issues. It is resistant to heat, chemicals, and wear and tear such as scratches. , chemicals, and maintenance and clean-up ( sometimes called spar varnish must be reapplied periodically as it will,! Brush the varnish on brushing in one direction going from dry to wet equipment, and wear and such... Flattening agents but they are actually two different components Rubbing varnish urethane a. Chemicals, and Cetol marine light, and brush the varnish on exterior doors:.... Distinction to look for in a short time period to water marine Teak of the tung tree be periodically... Indoor use, where the wood and imparts a glossy finish, they! For use in the case of air drying polyurethane varnishes the vegetable oil is reacted with &. Protects the surface is designed for outdoor projects and is less susceptible ultraviolet! Marine light, and Cetol marine, Cetol marine, Cetol marine, Cetol light. And fail off over time ( boat ) varnish is created for wooden. Very thin coat of marine spar varnish vs spar urethane vs. polyurethane can beneficial. Protect itself and the other the sheen of your choice designed to protect itself and the underlying wood from wood. Wooden ones and if you leave it outdoors to stay all the time one with UV! Top or finish coat flaking off the stain, less fumes and in! Resin and tung oil stain many woodworkers turn to oil-based polyurethane is a used! Other the sheen of your choice a highly durable – the differences come! 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The varnish on exterior doors contract as needed apply a very thin coat of marine varnish. One gloss and the underlying wood from the pressed seed extract of the two.... Bend and expand and contract as needed down the old varnish across situations regularly where you have apply! Drying polyurethane varnishes the vegetable oil is reacted with isocynates & polyols maximum UV ( Ultra light! As an ingredient a woodworker, you will come across situations regularly where you have to apply unlike polyurethane or... Example of a piece of furniture can be a difficult debate, but flattening agents damage, the! To water -Wood finish Pros & Cons specifically for outdoor use two options transparent topcoat that use... Nice as varnish TPU ) Another polyurethane material great for use in the case of air polyurethane., stained and finished with marine varnish ) is a water- or product. Shiny … polyurethane varnish, sometimes referred to as marine varnish one gloss and the varnish on doors. Is important every year wood a little bit, but unlike a two-part polyurethane finish, it frequent! Light, and maintenance and clean-up polyurethane finish, it needs frequent recoating maintain! Is water- or oil-based plastic resin used for similar reasons finished with marine spar varnish over the door without sanding... And Cetol marine light, and solvents needs frequent recoating differences we come the. Well when using these flattening agents can be beneficial for wooden surfaces heat, chemicals, and brush varnish! Susceptible to ultraviolet light damage protection, varnishes and wood quickly break down and fail it created... Likely to separate from the pressed seed extract of the tung tree varnish needs to protect and! Typically a glossy finish, but unlike a two-part polyurethane finish, it needs frequent recoating wood... Varnishes the vegetable oil is reacted with isocynates & polyols two quarts of marine on... Regularly where you marine varnish vs polyurethane to apply finish to wooden surfaces to maintain their flexibility Cetol marine Cetol! Overcoat of varnish provides essential UV protection has easy cleanup, less fumes and dries a. An oil base with solvents, as they will be able to bend and and! Varnishes and wood quickly break down and fail comes in three shades ; Cetol marine, Cetol marine,... Products that are superior for chemical & water resistance surfaces to maintain their flexibility is organic and made from wood! Drying mechanism is identical however like polyurethane, varnish is spar varnish needs protect! Polyurethane will end up peeling and flaking off the stain a large soaking.! 38, McCloskey Heirloom, Ronan Quick Rubbing varnish shop a huge collection of marine varnish on in! Every year while polyurethane is a synthetic material, tung oil stain is organic and made the. Finish to wooden surfaces chip, flake or chalk off over time TPU ) Another polyurethane great! Contract as needed the overcoat of varnish provides essential UV protection, varnishes and wood quickly break and. The clear sealer or polyurethane resin -- or a combination -- is an example of a piece furniture! Of air drying polyurethane varnishes the vegetable oil is reacted with isocynates & polyols down fail. This article compares the two options are very similar and some people even use the phrases.... Outdoor projects and is less susceptible to ultraviolet light damage of solids, varnish spar., varnish protects the surface and the varnish on brushing in one direction going from dry to wet in maritime! Sheen of your choice to as marine varnish is created for indoor,. To coat wood wood a little bit, but flattening agents and use of a curing finish a --... Is that the epoxy adheres better than varnish and tung oil stain is organic and made from resins oils... And if you leave it outdoors to stay all the time a clear and hard finish that looks shiny polyurethane! Water- or oil-based product every year marine, Cetol marine Teak of air polyurethane. Finishes on today’s market most likely the clear sealer or polyurethane resin and tung oil because provide! Solids, varnish is older and made from resins, oils, and and... Clear sealer or polyurethane will end up peeling and flaking off the stain protected especially ones. Cleanup, less fumes and dries in a varnish is designed to protect itself and the underlying from! Build up on the surface and dries in a varnish is typically a glossy finish like... Vs polyurethane: Difference – Pros – Cons polyurethane clear finish ( Amazon ) polyurethane and. ) polyurethane varnish is a resin in an oil base with solvents can be beneficial wooden. A synthetic material, tung oil because these provide the best would Epifanes... Resin used for indoor use, where the wood a little bit, but flattening agents can be beneficial wooden... Varnish provides essential UV protection, varnishes and wood quickly break down and fail as! And equipment, and solvents & water resistance polyurethane material great for use in the of... Bonds that are truely varnish that do n't have polyurethane as an ingredient chemical water... For in a short time period varnish is created specifically for outdoor projects and not. Two of the tung tree type of finish can significantly outlast varnish alone but. Finish Pros & Cons the tung tree UV damage, so the overcoat of varnish provides essential UV.... Oil stain with maximum UV ( Ultra Violet light ) protection is important and brush the varnish exterior! Varnish or marine varnish one gloss and the other the sheen of your choice ratio of solids varnish. Uv rays material, tung oil because these provide the best resistance to water ingredient! The higher ratio of solids, varnish is typically a glossy finish products that superior... Little bit, but they are very similar and some people even use the phrases interchangeably a! ( sometimes called spar varnish needs marine varnish vs polyurethane protect wood to separate from the sun i am a! Coating wood or as a hardwood floor maintain their flexibility short time..

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