ZINSSER COVER STAIN OIL
Cover Stain is an OIL based primer and sealer that excels for in covering stains from water, graffiti, smoke, nicotine, grease and crayon. It adheres to non-porous surfaces such as hardboard, glass or gloss paint, and topcoated in 1 hour. For interior or exterior use on new or previously painted surfaces, Cover Stain will seal porous surfaces like new wood & sheetrock or even redwood & cedar bleed. It can be tinted, and used under most topcoats, oil or latex surfaces.