Zinsser bulls eye 1-2-3, qt, gray, water based all purpose primer, high performance, for interior & exterior residential, commercial & industrial applications, excellent stain blocking resistance, fast dry, excellent adhesion to glossy surfaces, use with rich or dark topcoat colors to improve their hide & coverage, may be used under & over any oil or latex architectural paint, dried film is mold & mildew resistant, 1 hour dry time.