Corrosion FREE Formula 3000 with CSC850 can actually clean and stop the progression of surface corrosion. Once your vehicle is enrolled in the program you can return to any Corrosion FREE zone for a no charge treatment of a stone-chip or paint abrasion. This will ensure that the damaged area never progresses to a perforation or hole. Every 18 months when your vehicle returns for its complete protection treatment, we once again give attention to those areas where surface corrosion could take hold.