ALLWIN 394 Mil Car Sound Deadening Mat Heat Insulation Material

This high-density 394 mil closed-cell foam effectively blocks up to 98% of radiant heat transfer to maintain optimal cabin temperatures. The specialized aluminum foil finish provides a durable thermal barrier against engine, exhaust, and environmental heat. Engineered with a waterproof and odorless formulation, this lightweight material prevents moisture absorption while dampening structural vibrations. The self-adhesive backing ensures a secure bond on firewalls, hoods, trunks, and door panels without the need for additional glues. Its flexible composition allows for precise cutting and effortless installation in complex automotive contours. This versatile insulation enhances acoustic performance by significantly reducing road noise and mechanical resonance for a quieter ride.

Material	Closed-Cell PE Foam with Aluminum Foil
Thickness	0.394 inches (394 Mil)
Surface Area	10.8 square feet
Dimensions	40 x 40 inches
Temperature Rating	-40°F to 300°F
Attachment Method	Pressure-Sensitive Adhesive
Moisture Resistance	Waterproof and Non-Absorbent