Most regard European Ox hair as the gold standard for an ox hair brush. Granted polyurethane is a surface protectant and the thicker the coat the more protection it affords. To reveal flaws (bubbles, brush marks, etc.) PS: Make sure you remove all dust. In a couple of hours, the dried poly just peels right out of the pan. Polyurethane is a class of varnish. Your piece will feel like it has a few surface bubbles but when your next coat of poly goes on it will fill them. Painters and furniture finishers hardly ever apply polyurethane with a roller because of its propensity for forming bubbles. I wouldn’t go to lambs wool unless you really thin it down to like 50:50 (in essence making it a wiping polyurethane) but you should NOT thin water based that much. Teak is a beautiful wood and depending on how fine of sanding you want to do an oil finish or an oil/varnish combo would be an eye popper. Hi Paul. Just like natural bristle a quality synthetic brush will last a lifetime (with proper care). I then go to the sink and wash thoroughly with dish soap and water using a scrub brush to comb though the bristles. Is this necessary. Soaking and pressing the brush to the bottom of a container filled with solvent releases air (you’ll see air bubble out as you press lightly down). For water-based polyurethane use a synthetic brush which is most frequently nylon. It’s good for sales but bad for smooth finishes and is the prime source for bubbling, running and puddling. . I did it but I never do on any of my projects. Not to hard to remove the polyurethane, you just want to remove the bumps. Do not add air into the brush by dabbing the brush, wiping it on the side of the container, shaking it, tapping it or any other speed it up procedure you might dream up. If you are not in a hurry Pure Tung Oil would be drop dead gorgeous on that table but because it has to dry between coats you’d be looking at a few weeks to get it serviceable. Old wood or leveling a newly DIY project is the physical part. Should I use a 3″ or do you think 4″ would be better. Any serious woodworker will tell you that quality tools are a key to a quality outcome. always looks smudgy with any touch even after drying for a week. Main Author of ‘TheHomeDigs‘. You are very welcome, glad to be of help. A friend recommended finishing by wet sanding and then using Renaissance micro-crystalline wax polish to finish. These are for my stair steps. Don’t coat over any solvent, this will interfere with the poly and cause bubbles. Because I like to let my project dry overnight so I can feel the surface, inspect for easily corrected flaws and see if the sheen is right for my intended look. However, a water based polyurethane floor finish requires less time to complete. Using the 8 rows start at the far back edge row, set your brush down at the extreme right side edge and GENTLY and SLOWLY drag your brush the entire 40″ from the right side edge to the left side edge. Applying Polyurethane to Hardwood Floors: Step by Step. Now GENTLY and SLOWLY drag your brush to the right side edge. “Tip off” each section. The poly video was my first attempt and I never thought it would get up to 850,000 plus views. My thinking is too much product weight on the larger sized brush. You can use oil based polyurethane if you want the floor to have a darker appearance. Any recommendations? Brush on three thin coats with a foam brush. First coat, second coat, third coats they’re all the same procedure. Thanks for your excellent video and complete directions and hints. I’m wondering how you recommend finishing to get high gloss shine? How to apply oil based polyurethane WITHOUT the pits and bubbles. A: In my opinion, the air bubbles that have appeared after the last coat of finish (I call them fish eye bubbles) are not necessary, and not likely the fault of the person applying the polyurethane. Applying polyurethane (and most other finishes) in heavy coats creates bubbles, puddles and runs and becomes a defect in and of itself. Because we had used gloss on the first two coats, will this third satin coat be any shinier than if we had used three coats of satin? After each coat, re-dip the roller in mineral spirits and put it into a zippered plastic bag for the next coat and leave the wet tray to dry. Am short ( female ) and my reach my be less than a taller.. Useful liquid to increase the durability of the far back row so superior the old of! Run somewhere around $ 20 but with proper care ) light sanding with grit... Has nontoxic formation gold standard for an ox hair by itself is too much to avoid brush Strokes Streaks... 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