Flitz Metal Pre-Clean prepares surfaces to be polished by removing dirt and corrosion. Pre-Clean is specially formulated to help aluminum shine, so it will never haze or dull. Polishing your aluminum without cleaning it first can cause dirt and debris to scratch and harm surfaces. Flitz Metal Pre-Clean removes harmful debris and cleans surfaces so they can safely be polished. Flitz Metal Pre-Clean safely removes corrosion, rust, calcium, lime, tarnish, grease, soap scum, hard water stains, and more. Its organic salt formula is designed for aluminum, but is also ideal for glass, fiberglass, stainless steel, brass, copper, enamel, and painted surfaces.