When used as paint or varnish, it can provide a hard, durable gloss that is resistant to water and different kinds of chemicals. However, the low solvents in water based polyurethane gives it a longer “pot life” (the amount of time you can work with it before it becomes unusable) and it is easier on your equipment. Water-based oil-modified: Appears cloudy in the can but dries to a tough, amber-color film, like an oil. The water-based material is more expensive, so often you will pay around 10-25% more. is also the most sold item in the market. Polyurethane sits on top of the wood to form a protective barrier that is watertight in only two coats. Polyurethane paints and varnishes used to only be oil-based. Both oil-based and water-based polyurethane are the most effective finishes that you can use if you want your furniture to have good protection and if you want to make their wood tougher. Some people prefer the warm, “amber” hue that oil-modified polyurethane imparts to wood, but keep in mind, this “yellowing” will continue and intensify over time. It's possible you can pick a cheaper shipping option. However, it has been discovered in recent years that water-based polyurethane works just as well. I am looking into the Oil-based urethane option. By eliminating oil, and using acrylic and other clear resins, water-based finishes don't yellow as they age. Water-based polyurethane will give off little if any odor compared to oil-based poly—a real issue if your finish room happens to be in your basement. Wiping varnish, usually a type of polyurethane, comes premixed, but you can make your own by thinning regular varnish with mineral spirits. Oil-based is more durable and will provide a longer lasting finish, but water-based poly is clearer and suitable for all wood types, and colors. Oil based polyurethane cost less than water based. Oil-based polyurethane has a more distinct odor and takes a longer time to dry than water-based ones. Which is better? 1) Minwax Water Based Oil – Modified Polyurethane, gallon, Satin MINWAX has been the company that creates the best chemicals in the world. The addition of urethane to water-based finishes makes it tougher and more resistant to scratches. Go for it. However, unlike the oil-based ones, the waiting time between coats is usually only about two hours. Target Coatings, Inc. The main difference is usually color: water based polyurethanes are completely clear and (again, if well engineered) will not yellow over time. Which would be preferable for this application in a high traffic area with lots of natural light? Could I apply the water based kind over the oil based once this is cured and dried? How do you choose whether you should buy oil or water based polyurethane? The organic solvents in oil-based products soak the wood grain, so … In terms of “feel,” because it’s thicker, one coat of oil-based poly would probably feel softer than water based poly (but rarely is only one coat of water based poly used). In addition to that, it is also prone to watermarks and may also raise the wood’s grains. We do not recommend using any of the Emtech topcoats on flooring applications unless an anti-slip coating is applied over it. Usually, you will find water-based polyurethane almost twice as … When clear, this type of resin is mostly used for woodwork and furniture. Do you know what kind of finish was used on that line of products? Water-based polyurethane may give off a slight odor, but it’s not as noticeable. The reason being that the oil products are designed to penetrate into wood fibers while water finishes sit on top. I have some old 1999-2000 Michael’s (later Restoration Hardware) stained oak bedroom furniture. The tools used to apply this kind of finish can also easily be cleaned by water instead of applying thinner. Can you apply epoxy resin over polyurethane? Water Based Lacquers Warehouse is CLOSED on Saturdays & Sundays and all major holidays. But, on top of the initial cost, you also need to consider that you will need to When using cans, make sure that you don’t shake them since this will produce bubbles that can appear in the finish. I’ve searched all over for this info, as I need to refinish the top of the bedside table. The Differences Between Varnish And Polyurethane, The Differences Between Lacquer And Polyurethane, The Differences Between Shellac and Polyurethane, Varnish and Lacquer, Differences Between Polyurethane And Urethane, Differences Between Oil-Based And Water-Based Polyurethane. When cost and coats are calculated, this works out to about 35 to 50 cents per square foot for oil based poly and 80 cents to $1.35 per square foot for water based polyurethane. Both of these types of products are an eye irritant, and both may cause skin irritation as well. No, I do not know the exact type of finish that was used on your furniture, however, considering that it was made at the turn of Y2K it is probably finished with a conversion varnish or catalyzed lacquer. Be aware that oil-based poly can take as long as 30 days to fully cure, however, it … +1.201.821.0150 (International), Sales / Administration / Warehouse: I’ve already tried popping these with a xacto knife to smooth out with no luck. Can you apply water based poly over oil based? It’s no accident wood floors, for example, are usually finished with urethanes. 800.752.9922 (USA & Canada) Because most water-based polyurethane only contains 30 to 35 percent solids, the recommended number of coats for a nice finish is four. Let’s start with why you would use polyurethane in the first place vs. other types of wood finishes such as shellac, lacquer, varnish, etc. Has the same low VOC levels as water-based polys. Since the conditions of use are beyond our control, this company cannot assume responsibility for any risk or liabilities that may result from the use of its products. With a water based poly, you have unlimited coats available. This will tell you how long ground/home delivery will take to arrive. Oil-based polyurethane is cheaper than water-based by a good margin. These factors may include your experience level, the temperature and other weather conditions in your work area, and even the amount of dust in it. Because of this, water-based polyurethane can also be used around children. Polyurethane topcoats form a hard film and are durable enough to withstand the wear and tear of daily domestic use. As far as I know, when it’s fully cured and not just dried, it should be safe for children. Polyurethane dries faster than tung oil and takes only 12 hours to cure. If you created a custom-painted furniture piece, and you want to protect its surface, consider using a water-based polyurethane instead of an oil-based finish. My best guess is yes, it is flammable. :-/ thanks! can I put oil base varnish un top of water base varnish, No, oil based top coats don’t work over water based varnishes. At the same time, the odor can cause you harm which means that you have to let it dry in a highly ventilated area. 9:00am - 3:30pm Friday. It also has a tendency to stay on the furniture’s surface instead of penetrating it so it actually makes the wood’s color lighter. Thanks. The clean-up process, too, requires exposure to high-odor hydrocarbon solvents now well documented to cause short- and long-term health problems. Tung oil takes up to 48 hours to dry. So beware how you use it; sanding rubbing down seems like a huge amount of work for a simple finish? What are the key differences between a water-based polyurethane and a oil-based polyurethane? Also plan on waiting at least twelve hours before the last application and moving furniture back into your room. This penetration can also make the surface of your furniture shinier. However, it has been discovered in recent years that water-based polyurethane works just as well. However, it is not as heat resistant as oil-based polyurethane. Should I Use Oil Or A Water-Based Polyurethane On Danish Oil? Do you have experience using (or questions about) water based poly vs. oil based poly? I’m no expert, can’t tell if urethane or not. If you disable this cookie, we will not be able to save your preferences. As an Amazon Associate I earn from qualifying purchases. Oil based polyurethane adheres well to nearly everything, too…except itself. This also means that dust and other air particles are more prone to stick to it. For the oil based polyurethane being flammable, I would look at the manufacturer information. It also has a clear finish that has a lasting effect, although most of the time it is shorter than oil-based ones. Thank you!!! Keep in mind that there are variations to each urethane type, so read the product spec sheet carefully. Water based vs. oil-based polyurethane can both be applied by brushes and spray-on cans. This option is by Appointment Only. This will ensure that the paint remains the color you originally chose If you’re trying to make something virtually bombproof, oil based may be the way to go, but the hazardous additives and flammable solvents you’d need means you would almost be making a bomb. A good, easy to use option for refinishing these types of finishes is to use our EM8000cv Conversion Varnish with our CL100 Crosslinker added in to it. If all else fails, could I apply epoxy resin over the oil based high gloss polyurethane? Susan – Water based finishes are much lower in odor, dry faster and depending on the type of poly you choose will not yellow. Can I use it over paint? This is due to the high slip factor of our finishes, they are very “fast/slippery”. However, oil based stains have some added health hazards involved. Im afraid I don’t have a solution to your problem since you applied the polyurethane on top of the contact paper with the small bubbles underneath. This will prevent your furniture from having a plastic look. Please share your thoughts or read what others are saying in the comments section below. Your email address will not be published. Janet – Thank you for sharing your inquiry with us. This product has been characterized as one of the best water based polyurethane for furniture. When clear, this type of resin is mostly used for woodwork and furniture. Breathing its harmful vapors may cause lung irritation, and prolonged use the product may lead to liver and kidney damage. When it comes down to pure looks over substance, oil-based polyurethane stands out head and shoulders over its water-based counterpart. It basically has two kinds: water based vs. oil based polyurethane. Finally, water-based poly dries a lot faster, giving dust less time to settle out of the air into your finish. What lasts longer on wood, penetrates, Etc. The disadvantages of using oil-based polyurethane are the high amount of toxicity that it contains due to harmful chemicals that will require more time to dry than water based. 3. Water Based Urethanes The main difference between water- and oil-based products is the appearance of the finish. Polyurethane, a plastic-based resin, can be used in many different ways. Oil based polyurethane or Water-borne polyurethane…. Jackie – Thank you for our inquiry. One good method of applying oil-based polyurethane is to use mineral spirits to thin the finish before wiping it on. Water-based polyurethane is, on the other hand, thinner but harder. Strictly Necessary Cookie should be enabled at all times so that we can save your preferences for cookie settings. That means you must sand it between coats to create a mechanical bond to the next layer. Water based polyurethane is extremely versatile; it will bond to nearly anything including wood, (non-ferrous) metal, fiberglass, stone, cement and carbon fiber. You can find both types of polyurethane in brush- and spray-friendly versions, so “ease of application” is a tie. In terms of durability, oil-based polyurethane has its water-based counterpart beat. Oil-based polyurethane only requires around two to three coats since it contains 45 to 50 percent of the solids that create the protective finish. Three Great Projects to Add Some Fun to a Child’s Room. 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