Shellac-base primer-sealer, For interior and spot exterior use, Greatest stain sealer, Seals knots and sap streaks, Seals pet, smoke and musty odours, Sticks to all surfaces without sanding, Lightning fast dry - recoat in 45 minutes, Dries in 45 minutes, High performance stain blocking primer, Seals in mould, mildew, fire damage, and knots