Diamond Brite Wheel Cleaner is a purple, non-alkaline, ready-to-use, spray-on/rinse-off wheel cleaner. It is tough on brake dust, grease and road grime and rinses off easily after application. Diamond Brite contains metal brighteners specifically designed to clean and brighten coated aluminum, painted and spoke wheels leaving them with a bright showroom shine. It is safe to use on wheels and is excellent at increasing the shine and appeal of all coated wheels. Diamond Brite is safe and effective when used on plastic and painted surfaces found in underbody and suspension areas. Also can be used to deep clean textured plastic surfaces such as truck running boards, dock bumpers, trim and facia.