Clean aluminum, diamond-plate, and all metals like magic. Makes fast work of crud and gets you ready for polish in minutes, not hours! Non-flammable. organic salts formula. Unmatched for its performance on aluminum (will not dull or haze) and diamond-plate. Safe for use on painted & fiberglass surfaces too. Safer than traditional acid-based cleaners. Just spray & rinse. Product will continue to work on the surface until rinsed. You MUST rinse the surface with water after application and neutralize the formula to prevent and encroachment on the surface itself. After the surface is cleaned you must follow up with a polish or wax to keep it from quickly re-tarnishing. PLEASE NOTE: This product is a cleaner only. It is not a polish. Not for: Patina finishes. If you have an oil-rubbed fixture or hand-hammered copper sink that has had an artificial patina applied, DO NOT use this product on it. This product will remove the patina!