Green Metal Polish is mainly designed for aluminum, but works great on chrome also. It removes oxidation, cleans & protects in one easy step. It gives mirror finish and protects for a long time because it contains wax. It is an aggressive product so cleans aluminum fast and with ease. It can be used by hand or a wool cutting pad. It may give minor scratches on very soft aluminum to motorcycle fanatics for whom we recommend Allbrite's Fine Metal Polish.