Make sure the previous finish has at least a day to dry. To be honest I was a little sloppy trying to finish in a hurry. Adding thinner also helps to get the polyurethane to flow Use a good China bristle brush and flow the poly on the substrate. If you choose a water-based product, the process for achieving a smooth finish is basically the same. How do I smooth polyurethane after it dries but still maintain its finish? Sometimes thinning the poly too much will create bumps. However, there is a way to remedy these flaws without undoing a day's work. How to Get a Smooth Polyurethane Finish. Avoid Creating Foam. The way you get thin coats is to thin the finish slightly, maybe 5%, with thinner or mineral spirits. I guess I have also learned that to get a professional looking unblemished finish I would either need to wipe on all of my coats of polyurethane, which would probably mean 8 coats, or rub out the finish when I am done. If the finish “balls up” or seems wet, let it dry some more. If you just lay it on quickly and leave it, it has a chance to flow out eliminating the ridges made by the brush. Lightly mist the surface with water so you can sand down the finish more efficiently. 24 Related Question Answers Found What happens if … Let the finish fully cure! Woodworkers have developed several types of wood finishes, and there are many ways to categorize them. 34 … Find out how you can keep your finish clear of this problem. Tip 3: Wipe the project with mineral spirits. I will give it a try Michael, Achieving a nice blemish free finish on your furniture refinishing project using polyurethane is possible even for a first time finisher is you follow the steps in this article. Sand between coats – After applying your first coat, let the poly dry entirely before applying the next layer. Brush marks often show up on pieces of furniture treated with polyurethane finish, usually despite the best efforts of the craftsman. Your piece will feel like it has a few surface with 600 paper by just barely touching the surface with the sandpaper. I'd remove what's there, and not try to sand it down. Don’t freak out when you see the finish right after you lay it down. They also take longer to dry between coats. The contact detail associated with How To Get Bumps Out Of Polyurethane Finish is also mentioned to make it easy for a user to contact the furniture seller. All logos and trade names are the property of their respective owners. right light I can still see some very tiny imperfections, but the After your polyurethane finish has dried and is cured enough to work on, we can wet sand the finish. “Tip-Off” each section of the surface – Tipping off refers to running your brush across the surface immediately after applying your finish. I have found that if you don't break down the gun periodically … Do this by sanding out the bubbles then apply a fresh coat of the product. What's unreal about poly? A finish that has not cured will not be hard enough to take an even scratch pattern from abrasives. This super light sanding does not change the sheen and removes the tiny I have a smooth surface ready for the second coat now but I'm left Just be sure you use a tack cloth to clean off dust that’s appropriate for water-based finishes, like a … How do you get polyurethane drips out of wood? Allow furniture with a fresh polyurethane coating to dry completely. As you start to see a slight white liquid wipe it as you go. Getting Rid of Bubbles In Your Dried Polyurethane Finish. We use an oil-based polyurethane finish in this story, though you can also use water-based urethane finishes with great results. Tip 4: Use a roller on large, flat surfaces. HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. December. However, spraying polyurethane will involve a more particular technique. Tip 5: Finish both sides at once. I keep a can of spray poly handy in case of bubbles. It is important to keep in mind that if you are standing a piece of polyurethane finish there are enough coats of poly. This is most important for a successful rubout. Just looking for opinions on what you guys do to remove dust pimples from polyurethane. Otherwise, toss it I put two coats of stain on it and now have applied three coats of polyurethane with a brush. Pro Tip: Don’t keep working the finish. Try not to … Some brush marks and bumps raised area. Spraying polyurethane with a paint sprayer takes out the most … You If I look very closely in the Using the wrong brushFor an excellent finish, you need to choose the right kind of brush based on the type of polyurethane you intend to use.Use a brush with natural bristles (made from animal hair) for oil-based polyurethane. Now I am applying 3-5 coats of polyurethane. Moving of the brush so quick causes trapping of air between the bristles creating air bubbles that then get transferred to the surface. Brush marks often show up on pieces of furniture treated with polyurethane finish, usually despite the best efforts of the craftsman. I am very happy with it but have an issue with the finish. Thinning the finish will make it flow out better so brush marks will level and air bubbles will have enough time to burst before the finish sets up. Tip 2: Maintain a clean work area. When the polyurethane isn’t thinned out, it feels rougher, and there is more chance to get little bumps of texture in the dried poly. spake: On Sat, 19 Mar 2005 15:02:56 GMT, the inscrutable GerryG 1-2 coats risks sanding through to the wood, apply 4-5 coats to be safe. The sandpaper a separate container to avoid contaminating the original can with your brush across the with! You do n't think I 'm using the wrong brush, in way... 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