Beger Unithane U-404 / U-202 (B-52)

Step 1 Surface preparation: - If the wood has been painted before and the film is peeling, or it is old wood that has never been painted, sand it back to the bare wood. For new wood, sand off excess wood fibers. Then clean the surface so it is free of grease, dust, oil and foreign matter. - If the polyurethane film is in good condition, scuff the film with No. 320 sandpaper and then clean the surface so it is free of grease, dust, oil and foreign matter. - If the wood has resin, wipe off the resin with Thinner M-77

Step 2 Primer: - Apply 1 coat of Beger B-2000 wood resin-blocking primer and leave for about 1-2 hours. - Fill holes or nail heads with Beger Wood Filler, leave for 30 minutes, then sand and clean. To match the filler shade to the wood, fill after priming, because wood naturally darkens once primed

Step 3 Topcoat: - For the first coat, mix Beger Unithane B-52 with Beger Thinner M-44 at a ratio of 3:1. - For subsequent coats, mix Beger Unithane B-52 with Beger Thinner M-44 at a ratio of 4:1. - Let each coat dry for about 4-8 hours, then lightly sand the surface with No. 320 wet sandpaper and clean before the next coat. - Apply at least 2-3 coats for a good protective finish on the wood. For a matte or semi-gloss film, brush or spray the final coat with Beger Polyurethane B-5000/I-511 (matte) or B-5000/I-513 (semi-gloss)