COVERS UP Stain Sealing Ceiling Paint is a low odor vertical aerosol that is a stain killer and ceiling touch-up paint in one. ZINSSER's stain blocking primer technology is incorporated into this new generation product that offers a flat white finish which matches most new acoustical ceiling tiles and white ceiling paints. Vertical aerosol for overhead professional projects Quick cure for water stains Flat white finish matches most ceiling tiles Great hide- non-yellowing Low odor- all purpose interior use Use under or over latex and oil base paints Rustoleum / Zinsser Corp