Completely Safe for use on: Brass, Copper, Silverplate, Sterling Silver, Chrome, Stainless Steel, polished Nickel, Brushed nickel, Bronze, Solid Gold, Aluminum, Anodized Aluminum, Beryllium, magnesium, platinum, pewter and Factory Hot Gun Bluing, painted surfaces, Formica®, cultured marble, fire clay sinks, Corian™, glass, Plexiglas[RM}, fiberglass and Eisenglass. Not suitable for: Electroplated Finishes.