Cleans and brightens aluminum and metal surfaces (rims, tanks, diamond plate). Removes oxidation, stains and discoloration. Contains corrosion inhibitors to deter rust from returning. Remove road salt corrosion on your aluminum trailer. Clean and remove brake dust and build up from coated rims. Use on pontoons, aluminum boats, running boards, step plates and diamond plate, aluminum tanks on trucks and RV, aluminum trim on trailers and RV, parts and tools. For a mirror finish, follow up with an application of Bio-Kleen Renew metal polish.