Guaranted to Safety Clean & Protect: Brass, Copper, Silverplate, Sterling, Chrome, Stainless Steel, Nickel, Bronze, Solid Gold, Aluminum, Anodized aluminum, Pewter, Magnesium, Berillyum, Platinum, Acrylic, Factory hot gun Bluing, Most painted surface, Glass, Formica, Cultured Marble, Corian, Plexiglass, Eisenglass and Fiberglass.