Goof Off Professional Strength Remover works on tough adhesives & glue, crayon, pen & marker, gum, scuff marks, stickers & decals, asphalt & tar, dried latex paint, duct tape, caulk, tree sap and candle wax. Ideal for hard surfaces, including metals, glass, brick, wood, concrete, grout, fiberglass, hand tools and most automotive surfaces. Product Features:Removes adhesives, decals, asphalt and tar from most hard surfaces Ideal for all kinds of hard surfaces such as metals, glass, brick, wood, concrete, grout, fiberglass, hand tools and most automotive surfaces