Total Coat Undercoating Gravel Guard Waterborne, no VOCs, single component product, no additives or mixing required Dries to a beautiful, paintable matte black finish but can be top coated with Total Coat Finish for a high gloss appearance Strong adhesion to metal, wood and fiberglass and painted surfaces. Exceeds Salt Spray Mist Corrosion Test (GM4298p) 1000 hrs Outstanding anti-chipping performance (Gravelometer test GM9508p)