Ready Strip Paint Overspray & Spatters Remover gently remove the residue and softened layers sometimes remaining after paint or varnish remover. This water-based solution contains no methylene chloride, is non-flammable, and easy to use. It works on interior and exterior surfaces including wood, plaster, concrete, brick, stone, metal, marble, fiberglass, veneers, etc. Do not use on plastic, drywall, rubber or linoleum surfaces. Test for possible damage in an inconspicuous area before use.