Step 1
Step 1 Surface preparation: Previously painted wood with a peeling film – sand back to the bare wood, then clean the surface so it is free of grease, dust, oil and foreign matter. Old wood that has never been painted – sand to open up the wood, then clean the surface. New wood – sand off excess wood fibers. If the wood has resin, wipe off the resin with Thinner M-77, then clean the surface so it is free of grease, dust, oil and foreign matter. If the existing polyurethane is in good condition – scuff the surface with No. 320 sandpaper and clean it. If your wood has holes or nail marks, fill them with Beger Wood Filler, then sand and clean the surface
