Varathane 224741 Sanding Sealer, Quart"RUST OLEUM" SANDING SEALER Varathane Sanding Sealer seals wood and is easy to sand. Apply under any clear wood finish, including oil or water based polyurethanes, lacquers and shellacs. Please read product labels for additional directions and precautions before using FEATURES: Varathane QT Sanding Sealer Works Under Any Finish, Oil Or Water Based Polyurethane Universal works with oil and water based finishes Easy to sand Smooth, even finish Lacquer