Beger Diamond Premium Polyurethane P-55

Step 1 Surface preparation: New surfaces – for new wood, first sand off excess wood splinters. For resinous wood, wipe the wood clean with Beger Thinner M-77, then wipe the surface clean so it is free of grease, dust, oil or foreign matter. Old surfaces – for previously painted wood with a peeling film, sand down to the original wood with sandpaper; if the existing polyurethane film is still in good condition, lightly sand the surface with No. 320 sandpaper, then clean the surface so it is free of foreign matter

Step 2 Primer: apply 1 coat of Beger B-2000 wood resin-blocking primer and leave it for about 1-2 hours, or for wood with an uneven surface, apply 1 coat of Beger Sanding Sealer B-2400 grain filler

Step 3 Applying polyurethane - For the first coat, mix Diamond Polyurethane with Beger Thinner T-85 at a ratio of 3:1 parts, leave to dry for about 3-4 hours, then lightly sand the surface with No. 320 sandpaper and clean it - For subsequent coats, mix Diamond Polyurethane with Beger Thinner T-85 at a ratio of 4:1 parts and leave to dry for about 3-4 hours before applying the next coat. Each coat should be lightly sanded with No. 320 sandpaper and cleaned. For the best protection, apply at least 3-4 coats. Note: if a matte or semi-gloss film is desired, apply or spray the final coat with Beger matte polyurethane B-5000/I-511 or I-515; for semi-gloss, B-5000/I-513