Permatex 81833 Heavy Duty Rubberized Undercoating, 16 oz. net Aerosol Can Seals, protects, and insulates; rubberized for maximum durability Professional strength, all-purpose undercoating formulated to offer excellent protection and coverage Combines the flexibility and sealing properties of rubber with superior coating thickness Ideal for home or shop use Suggested Applications: Automotive frames, rocker panels and wheel wells; also can be used for sealing gutters, roofs, drain systems, tree pruning, and sound deadening applications