Automotive paints and coatings add a layer that protects and enhances the surfaces of automobiles, trucks, farming equipment, and industrial parts. High-heat engine and exhaust primers allow better adhesion of automotive paint, enamels, or topcoats to surfaces. Touch-up paints repair scratches, chips, and other marks on vehicles. Truck bed coatings include rust treatments to dissolve and remove rust from vehicle surfaces while undercoatings help protect undercarriages against outdoor elements.