Wave-shaped sound dampening pads have the same properties as rubber foam and excellent sound insulation properties It absolutely does not absorb water, no different from polyurethane foam It is very light-weight and resistant to oil Where to use sound dampening pads: A.Hood B.Celling C.Door D.Cockpit Floor E.Tailgate F.Firwall and U Type Wall J.Front fen-der H.Front and Back / handle / cut flexible, suitable for various models Good thermal insulation interior can improve the comfort of the vehicle your car is equipped with a powerful engine and an enhanced exhaust, the lining heat will solve the problem of overheating Perfect for car, apartments, condos, studios, classrooms, factories, Manufacturer: HENYGEN