This non abrasive pure wax is designed as the last step product in sealing and shielding against acid rain, oxidation, salt spray, stains and other environmental contamination. Prevents the adhesion of foreign elements for months while preserving the sleek, reflective look of your boat's finish. (Note: If surface is soiled, pre-wax with Collinite's No. 920 Fiberglass Boat Cleaner).