3M Professional Grade Rubberized Undercoating is an easy to use black protective coating that does not run when applied, provides anti corrosive protection, sound deadening and insulation to cars, trucks and recreational vehicles. Use on vehicle underbodies, wheel wells, trunks and boat trailers. - Multi-purpose undercoating may be applied to cars, truck and recreational vehicles - Sound deadening properties help reduce road noise - Anti-corrosive coating protects the undercarriage of vehicles from rust and abrasion - Aerosol dispenser allows for easy spray-on application