Description:The rims on your car get covered in road grime and brake dust every time you go for a drive. Brake dust is made of tiny metal shavings, carbon fibers and adhesive material from the brake pads. Letting brake dust sit on your rims leads to corrosion, pits and rust on the surface. Car soap gets some of the road grime off, but it won't remove stubborn stains caused by the brake dust. Clean the car's rims correctly by adding just a few minutes to your regular car-washing schedule.