Zinsser B-I-N Advanced Synthetic Shellac Primer Sealer provides durable stain blocking protection for interior and spot exterior applications

Compatible with all types of bare or painted surfaces including drywall, wood, masonry, galvanized metal and more

Seals tannin, knots and sap streaks

Seals cigar, cigarette and nicotine odors

Excellent adhesion to slick surfaces like tile, glossy paints and varnishes

Easy to apply by brush, roller or airless sprayer