Sound Deadening Mat 60"x40" 275Mil 7mm Self-Adhesive Thermal Insulation – Car Sound Deadener for Hood Door Trunk Floor Firewall Truck Van RV

Sound Deadening Mat 60" × 40" 275Mil (7mm) – Self-Adhesive Thermal & Noise Insulation for Car, Truck, Van & RV

Reduce road noise, vibration, and heat transfer with this heavy-duty 275Mil (7mm) sound deadening mat. At 60" × 40" (59.06" × 39.37"), it provides generous coverage for doors, hoods, trunks, floors, and firewalls across a wide range of vehicles — from daily drivers to off-road trucks, vans, and motorhomes.

Key Features

Heavy Duty 275Mil (7mm) Thickness

At 275 mils thick, this mat delivers serious noise and vibration damping performance, significantly reducing road noise, rattles, and resonance for a quieter, more refined driving experience.

Thermal Insulation

Dual-function design blocks both sound and heat, helping maintain a more comfortable cabin temperature by reducing heat transfer through the hood, firewall, and floor.

Strong Self-Adhesive Backing

Peel-and-stick installation — no special tools or adhesives required. The strong back adhesive bonds firmly to metal and other automotive surfaces for a long-lasting, rattle-free hold.

Easy DIY Installation

Simply cut to size with scissors or a utility knife, peel off the protective film, and press into place. No professional installation needed.

Wide Vehicle Compatibility

Suitable for cars, trucks, vans, SUVs, off-road vehicles, ATVs, and motorhomes/RVs. Apply to doors, hoods, trunks, floors, firewalls, and other interior panels.

Specifications

What's in the Box

• Sound Deadening Mat ×1 (59.06" × 39.37")

Note: Cut to fit your specific application area. Clean surface thoroughly before installation for best adhesion.

Ideal Use Cases

Car door sound deadening · Hood insulation · Trunk liner · Floor noise reduction · Firewall heat shield · Truck cab insulation · Van conversion · RV noise reduction · Off-road vehicle build · DIY audio upgrade