Presta Heavy Cut Overspray Clay Bar is designed to restore severely damaged automotive surfaces. The special blend of abrasive and clay-type binder system removes surface contaminants including cured overspray and industrial fallout from automotive finishes and trim and in most applications without scratching. Buffing, after treatment with this product may be required. Always use with a lubricant such as Presta Spray ‘N Shine or Malco Showroom Shine.