Our heavy-duty wheel cleaner contains disodium EDTA, cocoyl propyl betaine. It can be applied to all types of wheel and brake systems, including polished aluminum, matte black and chrome surfaces. Its use is simple: make sure the clean surface is free of impurities before use, and shake well. Spray a small amount on the tire surface several times, using a sponge or brush to remove surface dirt. Rinse with water. And can prevent tire aging and cracking, easily maintain their appearance and durability.