Dry Time Between Coats. Perhaps the best part is that tung oil is non-toxic. It comes in 2 varieties – glossy and satin finish. During the first stage, the solvent evaporates, leaving a film coating on the wood, and during the second stage, the film cures -- usually by combining with moisture in the air -- to become hard. Water-base finishes usually flows out well on its own. But it is too soft and thin to resist scratching or water-vapor exchange and it is difficult to make the finish look nice. Can Odorless Polyurethane Be Used for Wood Tabletops? Minwax® Tung Oil Finish creates a remarkably durable, hand-rubbed luster in minutes. In Understanding Wood Finishing, Bob Flexner states that, “Tung oil can be made fairly water-resistant after five or six coats. Can I apply water-based polyurethane over an oil based stain? However, straight tung oil is neither as hard nor as solvent-resistant as polyurethane. Full affiliate disclaimer here, [contact-form][contact-field label=”Name” type=”name” required=”1″][contact-field label=”Email” type=”email” required=”1″][contact-field label=”Website” type=”url”][contact-field label=”Message” type=”textarea”][/contact-form]. Water-based polyurethane is also completely clear. It brings about the richness of wood but adds a slight yellowish tint. It is this solvent and not the water that performs the curing process. Inadequate dry time is one of the top reasons for finish failure. Posted on July 11, 2018 April 22, 2019. After it dries, you need to “lock in” the dye with a sealing agent. Polyurethane on the contrary sits on the surface of the wood. With Minwax® wood stains, there’s a color to suit every style. It will leave you with a thin coat that will maintain your polished look for long. If they harden, however, the only way to get rid of them is to sand them. So in actuality they “cure” rather than dry. Tung Oil Finish will quickly and easily enhance the natural color and warmth of interior wood surfaces. Rockler's Tung Oil, on the other hand, is not a “tung oil finish”; it’s the real thing – 100 percent pure tung oil. Brushing after the finish starts to set will cause it to ball up and remain that way. The dust and hassle of doing this, combined with dry time, in a store or restaurant means it doesn’t happen and you end up with a really poor looking surface after a number of years. : oil-modified urethane, water base urethane, etc.). Both oil and water based versions can be applied on acrylic/latex paints. Surface coating finish (e.g. Water based polyurethane is famous for being low odor and low toxic. Re: Polyurethane finishing over tung oil Film type finishes are absolute garbage on exterior items like decks, outdoor furniture and garage doors. All you need is a good penetrating stain and it will last for many years. Moreover surfaces on which Tung oil is applied require touch-ups yearly to maintain their sleek finish. Two of the most popular finishing varnishes in the market are Tung oil and polyurethane. It will need fewer re-applications over the years compared to the water-based version and also offer slightly better Tung oil is one of the most water resistant of cuing oils and has a centuries-long history of use as a final finish. Do not sand between coats of tung oil. Conventional wisdom says never put a water based finish over an oil based finish. It is ideal for surfaces that will come into contact with food such as salad bowls, cutting boards and salt-pepper mills. Tung oil is an easy-to-use transparent finish that is resistant to water, most liquids and mildew. This is an application technique for tung oil varnishes, not pure tung oil. I have been working on wood projects since I was a young boy. It’s a blend of Tung oil and resin with a water-resistant finish that’s also food safe (more details on their food safe claim can be found ). Formby 30064 30064000 Low Gloss Tung Oil Finish is a type of oil for wood that protects the finish of the wood without altering the nature of your woodwork’s grain. Best of all, applying polyurethane doesn't require spray equipment and is a job you can easily do yourself. HOURS … Polyurethane varnish is one of the best finishes for a countertop -- it's durable and, when applied properly, can be just as subtle as lacquer. See the video below for some advice on how to best apply it to your wood floors: However it is not the best option for intricate woodwork pieces such as furnishings and scroll work on trims because of the thick patina it leaves on the surface. Minwax® Fast-Drying Polyurethane is a clear, oil-based, durable protective finish. Water based polyurethane is good for things that are not exposed to extreme or rigid temperatures such as picture frames, side tables, bookcases and desks etc. Water Vs. Oil Based Polyurethane for Countertops. Because it's water-based, it has little odor and cleans up easily with warm water. Crappy brushes may shed a bristle that ends up in your table’s finish. Natural bristles are best for oil-based products, but because such bristles swell in contact with water, synthetic bristles are best for water-based products. However, it does require some upkeep. Oil-based polyurethane is more durable than his water-based alternative since it contains a significant amount of Volatile Organic Compounds (VOCs). Can I use water based polyurethane over oil stain? Let the oil … It does matter what kind of finish you try to put over it. If you want to have a life time job do a film finish. Water-based finish goes by many names that may include the words "lacquer" or "polyurethane," but most use acrylic or acrylic/polyurethane resins in solvent and water. Technique I am sure. It brings about the richness of wood but adds a slight yellowish tint. Jim Carroll explains why it’s not only acceptable to use a water-based finish over and oil finish – provided you do it correctly – but that it can be the best solution when you want to bring out the natural character and color of the wood. Polyurethane may look great at first, but in very heavily used areas, like a restaurant, it can scratch off over time and must be sanded and repaired by someone who won’t screw it up. Tung oil makes the wood look granular and grainy by enhancing the natural grain of wood. Varnishes all consist of resins, some of which have been modified with drying oils, dissolved in a solvent. It is transparent as compared to the oil based version which has a slight color. The biggest disadvantage of polyurethane as compared to Tung oil is its tricky application. Over rolling and rolling too fast will result in bubbles. In my experience with water based dyes (Like Aniline or alcohol based dyes, etc.) Tung oil on the contrary is just rubbed on the surface. I am currently working on some oak chairs! Fast drying formula provides superior protection against moisture and penetrates deeply into the surface of stained or unfinished wood for a genuine, hand rubbed finish. Water-based varnishes are an exception to this rule. Organic solvents also cloud with age, so an oil-based finish tends to yellow, while a water-based one doesn't. It is difficult to use by itself as a finish because you have to sand tung oil after every coat, not just after the initial coat. If you can feel the texture of the grain, the floor has a “penetrating” finish (usually a combination of a natural oil, such as linseed or tung oil, mixed with additives for drying) topped with wax. Most "tung oil" today is actually a tung oil finish. You can always start over if you mess up. A coat dries within 12 hours of application and only 2 coating of polyurethane are required to make wood water tight. Tung oil is a plant-based oil used as a wood finish. Can also be used over our TRUETONE ® Color-Infused Tung oil stain. As mentioned earlier, pure tung oil is non-toxic. Polyurethane is a protective finish that is available in both oil based and water based forms. The biggest disadvantage of Tung oil is that it requires touch ups yearly but is prettier looking than polyurethane’s plastic-y appearance. Minwax® Wood Finish Water-Based Semi-Transparent Color Stain. However with oil based, because of the added dry time requiring repeat visits, the contractors’ price is often about the same for both. Raw/Pure Tung Oil finish - seeping issues. Allow 21 days for a water-based finish to cure and 30 days for an oil-based finish to cure before cleaning. ​. Run your hand over the wood. It is transparent as compared to the oil based version which has a slight color. It does not coat the wood in a way that polyurethane does. > Apply the top coat, which can be water- or oil-based polyurethane, tung oil, or a natural finish. Hello Jed. Polyurethane varnish may also lack the "hand-rubbed" lustre of drying oils such as linseed or tung oil; in contrast, however, it is capable of a much faster and higher "build" of film, accomplishing in two coats what may require multiple applications of oil. We recommend using a water-based stain to change the color of wood before tung oil is applied if a color other than that provided the tung oil is desired. Pure tung oil is difficult to store depending on exposure to light and temperature. Those chemicals make the finish tougher and allow it to last longer. Minwax® Gel Stain Minwax… https://www.youtube.com/watch?v=dO-lpMfPe1A&feature=emb_title, Dura Seal Water Based Polyurethane Floor Finish Application (https://www.youtube.com/watch?v=dO-lpMfPe1A&feature=emb_title), Minwax 63010444 Fast Drying Polyurethane Clear Finish, quart, Satin, Varathane 200041H Water-Based Ultimate Polyurethane, Quart, Gloss Finish, 32 Fl Oz, Minwax 40910000 Wipe-On Poly Finish Clear, pint, Satin. Top it Off While early American floors were left natural and occasionally cleaned with sand or lye and water, most of us today prefer some sort of topcoat on a wood floor. The organic solvents in oil-based products soak the wood grain, so the varnish penetrates deeply, whereas water-based products tend to remain on the surface. I applied two coats of minwax wood stain, each with 24hrs drying time in between. Boiled linseed oil and tung oils are the least toxic finishes you can use. Newer products (2009) also UV stable when noted Durable after a two-day curing period Safer than oil-based polyurethane, fewer volatile organic compounds: Easy. Tung oil is one of the most water resistant of cuing oils and has a centuries-long history of use as a final finish. Joined Jan 7, 2004 Messages 1. After the solvent has evaporated, the plastic coating left behind by both oil- and water-based polyurethane products is the same, so durability of the finish isn't an issue. Oil finishes tend to soak into the grain and yellow. If you are not concerned about yellowing of the surface, polyurethane is the best option. Minwax® Water Based Oil-Modified Polyurethane. 12. But if you really want the tung oil finish, (i personally think is darker then poly) then let it dry for a week and then top coat it with polycrilic poly so it won't color the tung oil that you so desired. The best way to apply polyurethane varnish to a countertop is with a paintbrush, although the type of brush you need differs according to the solvent. Shellacs and water-based finishes are the next best options in this regard. Dry Time Dry Time Between Coats. Unlike linseed oil-based polyurethanes, our URETHANE formula will not yellow over time. In fact you can apply it the same way as you applied tung oil, just put a layer on and then wipe it off. Among the most durable coatings for wood protection. TheSawGuy.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. It also comes in two varieties which is the satin or gloss finish similar to polycrylic. It also dries into a much harder finish than linseed oil and is more water resistant. Remove dust with a water-dampened cloth. Here is a short video showing how Tung oil is applied:​. Tung oil on the contrary is just rubbed on the surface. NUMBER OF COATS: 3. Both will give your wood projects that extra protection from scratches and stains, but water-based polyurethane has a faster drying time. Do not use Pure Tung Oil over oil-based sealers, stains, and finishes. Polyurethane varnish is one of the best finishes for a countertop -- it's durable and, … Water-based polyurethane has two important advantages over the oil-based variety. Kitchen table for example is a good candidate for oil based polyurethane. Water-Based Polyurethane Arguably the most popular surface finish for hardwood flooring, water-based polyurethane provides a clear finish and has the traditional hardwood look and feel. Water-based finish goes by many names that may include the words "lacquer" or "polyurethane," but most use acrylic or acrylic/polyurethane resins in solvent and water. Chinese artifacts brought up from the deep that were finished many years ago with tung oil are as beautiful today as they were a hundred or so years ago. Polyurethane would act just as an improvement on top of tung oil. Shake the tung oil container and apply a liberal amount to a clean cloth. The film in traditional varnish is usually provided by plant-based alkyds combined with linseed or tung oil. The beauty is, the more coats you apply, the more protection you offer the wood. Thin coats allow the finish to mold itself around the contours of the wood grain, thus avoiding the plasticlike sheen often associated with polyurethane -- especially the water-based variety. They dry in two stages. You may apply the Minwax Water Based Polyurethane over a fully cured Minwax Wood Finish Stain (oil-based). It readily dissolves in organic solvents and, when emulsified with other chemicals, in water. You can temper this to some degree by moving the brush slowly to reduce turbulence, and when bubbles form, it's usually easy to brush them out. When finishing a flat surface such as a countertop, several thin coats are better than one or two thick ones. One of the main disadvantages of water-based polyurethane is its tendency to form bubbles as you're brushing it. Finishes are usually blends of natural plant or nut-based resins or oils suspended in or mixed with oil, alcohol, … Tung oil (real and pure) yields a beautiful finish both in sheen and water resistance. Polyurethane varnish is one of the best finishes for a countertop -- it's durable and, when applied properly, can be just as subtle as lacquer. There is too many adhesion problems with polyurethane. In fact, you can apply it in much the same way as you did the oil — scrub it on with fine Scotchbrite, then wipe it off. You can always start over if you mess up. Since the Tung Oil is probably an oil and varnish mix you will probably succeed if you put shellac in between, but I would test it on a scrap piece before I put it on a finished piece. Polyurethane comes in both water-based and oil-based types. A varnish basically protects the wood from destruction. By eliminating oil, and using acrylic and other clear resins, water-based finishes don't yellow as they age. I have used Poly but my pieces have bubbles. Available in gloss, semi-gloss, and satin. Finally, protect your project with a polyurethane wood finish. I just refinished a round oak table and an old oak chest of drawers. The products that have made Minwax® an American icon will add color and beauty to your wood—in oil or water-based stains. Besides color, you can also choose whether you want a high-gloss, satin or semi-gloss shine on your flooring. A Drying Oil is one that will harden to form a solid film after exposure to the air over time. Ideal for woodwork, furniture, doors, cabinets and floors. Any dust particle if left on the wood will be incorporated in it forever. Kitchen table for example is a good candidate for oil based polyurethane. Last update on 2021-02-27 / Affiliate links / Images from Amazon Product Advertising API. Also asked, can you seal tung oil? It starts to form a film of deposits around the edges of container. Today, many water-based products on the market provide as good as or better appearance and durability than their oil based counter products. Can you put lacquer over polyurethane? Use alone to provide a crystal clear protective finish or in conjunction with ORIGINAL Sealer/Finish or UNIVERSAL Tung Oil Sealer (UTOS) to provide a protective finish with an ambering effect. You can apply more coats if you want the surface to look shinier. It can be applied over oil-based stains like Minwax® Wood Finish™ or Minwax® Gel Stain . It takes five to seven coats, with a two or three day drying time between each coat to achieve that attractive and smooth sheen. Use a rougher sandpaper for any areas that need more attention. Besides having an abiding interest in popular science, Deziel has been active in the building and home design trades since 1975. It also dries much faster than Tung oil. Oil based polyurethane is comparatively more durable than water based especially when it comes to handling extreme heat. Find out which finish is best for your project, water-based or oil-based polyurethane. Finally, finishes like … The sealant method is best for any previously finished wood, since oil-based stain may not sink into the wood. Can I apply polyurethane over oil before oil cures? Let us first take a look at the water-based variation of polyurethane and discover its strengths as well as its weaknesses. © Copyright 2020 Hearst Communications, Inc. polyurethane) that is suspended in water, along with a slow drying solvent. Provides long-lasting beauty and protection to any interior wood surface. Both are durable and good-looking, but there are differences. A protective layering is vital to protect your project surface against water and environmental damage. You can do this with your kitchen table for example. Either way you do it, always test on scrap wood and see what you like. Lovers of natural wood appreciate the way tung oil preserves the wood grain and texture without giving it a plastic-coated look. Save my name, email, and website in this browser for the next time I comment. Polyurethane is a synthetic plastic that replaces plant alkyds. Once applied, it might never require total refinishing because it adheres to itself without sanding. Used only in interior projects, this oil for wood dries clear so it can be used as a complement and it prevents chalking by resisting both water … The water based version also dries much faster. Woodworking Myth: You should never put a water-based finish on top of an oil-based finish. Feb 23, 2004 #6 of 14 Bruce Jackson Auditioning.
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