Zinsser B-I-N Shellac-based primer is a primer-sealer, stain blocker recommended for almost all surfaces. It blocks grease spots, fire, smoke, water stains, ink, crayon, knots and sap streak stains and seals odors resulting from water and fire damage. It seals knots, porous wood and spackled areas. It sticks to ceramic tile, glass, metal, plastic and hardboard.Greatest stain sealerSeals knots and sap streaksSeals pet, smoke and musty odorsSticks to all surfaces without sandingLightning fast dry – recoat in 45 minUse to prime picture frames, stools, benches, arts and crafts, wicker and louvers and moreShellac-based resinAcetone, ethanol, n-butanol solvents5 years shelf life