Safe All-Wheel Cleaner Ferrousity is a highly effective acid-free, non-caustic cleaner for all types of wheels. (Chrome, painted, steel alloy, powder coated, uncoated, anodized aluminum, etc.) Ferrousity easily loosens and removes stubborn grime from brake dust, oil, grease, rubber, and other road dirt films from wheels. Once you spray Ferrousity it takes about 10 seconds for the product to start changing into the reddish/purplish color, dissolving the brake dust and soils in it's path. Safe to use on most painted surfaces of a vehicle as well to remove the fallout & other surface contaminants.