Cavity Coater is designed for any enclosed or hard-to-reach metal surface. Automotive applications include rocker panels, boxed frames, inside doors, inside fenders, windshield cowls, trunk lids, hoods, A-posts, B-posts, tailgates, and the back sides of bumpers. It also works as an anti-seize coating on nuts, bolts, screws, shafts, pipe fittings, gaskets, chain drives, and general machinery.