Clay bar is a special cleaning plasticine made of synthetic materials that mechanically removes small contaminants from the paint surface. It is applied with the help of a lubricant by gently running it over the cleaned and moistened surface. Clay traps and pulls out the contaminants left after washing without damaging the paintwork. There are different clay hardnesses - soft for regular use, medium for routine cleaning and hard for heavily soiled surfaces. Clay bar is suitable as a preparation before waxing or polishing.