An asphaltic, rubberized base undercoat for use on cars, trucks and trailers, etc. to prevent rust and deaden sound. Undercoat leaves a firm, black, resilient, rubbery texture which will provide years of protection. Not paintable. An extremely durable rust and corrosion inhibitor. Resists chipping and will not crack or peel with age. Elastic, waterproof, deadens sound. For use on trucks, farm and construction equipment, in collision shops, as a tree wound dressing, and gutter and flashing sealer. Seals electrical boxes and fittings. Seals concrete and asphalt driveway cracks. Apply to clean dry surface not under 50* F. Spray with short even strokes from 14-18 inches.