Gyeon Iron is one of the most efficient, fast-reacting iron, ferrous, and brake dust removers. This product was specially developed to decontaminate surfaces from harsh ferrous deposits such as brake dust and rail dust easily, making intensive cleansing simple for both enthusiasts' and pro-detailers' alike. Gyeon Iron is very safe however, and can be used on many surfaces such as wheels and clear coated paints making it a great product to use. HOW TO USE: Simply spray Gyeon Iron onto a wet surface wait a couple of minutes and if needed, agitate with a soft brush or quality microfiber mitt. Watch as Iron quickly changes to a purple color as it reacts with any contaminants that it is starting to break down. Rinse Off well, preferably with a pressure washer or strong hose - do not let Iron dry on the surface. PLEASE NOTE: Store this product in a cool dry area, ensure the sprayer is turned off, and it will be ready for your next use.