High performance white-pigmentated shellac. Best sealer for new wood, wallboard, cured plaster and all porous surfaces. Blocks out all stains, water marks, knots, sap streaks, wood tannins, graffiti, grease, crayon, etc. Seals smoke & fire damage, pemanently sealing off odour. Interior Only. Fastest dry time, can be topcoated in 45 miutes. Use with oil or latex paints.