SGCB Clay Bar Cloth in Firm/Heavy Cut is perfect for removing grime and grease from car body work, glass, wheels and trims. Dirt left on your car, will over time cause damage. The SGCB Clay Bar Cloth makes light work of cleaning a build up of dirt. Ensure the body work is clean and free from obvious surface dirt before using. The Clay Bar Cloth is ideal for use before adding a fresh coat of wax, sealant or ceramic coating.