This is the final metal polish we have seen and we have decided to market it because of your requests. This is the best of the best. It will clean brass, copper, painted surfaces, acrylic, nickel/silver, stainless steel and aluminum. Also, try it on those carbon steel blades. Removes tarnish, rust, heat discoloration, oxidation, fingerprints, and much more. Not for use on electroplated finishes.