What brush do you use for polyurethane?

Apply polyurethane using a bristle or foam brush about 2″ wide. Foam works well and eliminates the chore of cleaning, because the brushes are cheap and thus disposable. You can apply the first coat full strength or thinned up to half with paint thinner, making, in effect, a wiping varnish.Click to see full answer. Consequently, what do you do with a brush between polyurethane coats?Put your paint brush in a plastic bag and place it in the refrigerator when you take a break. Make sure the plastic is completely sealed or your food could pick up some weird odors. This tip really saved me a lot of time when refinishing my wood floors with polyurethane. I had to wait several hours between coats. can I use a polyester brush with polyurethane? How to Apply Polyurethane: When working with any finish Choose the right brush. Use natural bristle for oil-based finishes and synthetic filament (polyester, nylon, or a blend of the two) for water-based and water-based oil-modified finishes. Don’t use rollers or foam brushes—they create bubbles. Herein, how do you apply polyurethane without brush marks? A light coating of finish after sanding disguises the area. Sand down the brush marks lightly with the fine-grit sandpaper. Brush the sanded area off with a soft cloth to remove all traces of dirt and grit from the sanding. Apply the polyurethane finish lightly to the brush, making sure to wipe off any extra. How do you get a smooth finish with polyurethane? How to Get a Smooth Polyurethane Finish Overview: Materials and techniques. Tip 1: Sand out pencil marks. Tip 2: Maintain a clean work area. Tip 3: Wipe the project with mineral spirits. Tip 4: Use a roller on large, flat surfaces. Tip 5: Finish both sides at once. Tip 6: Use wipe on poly for small or tight areas. Tip 7: Lightly sand with pads and paper.