Acoustic Foam Damping Sheet 3mm Soundproofing for All Cars

A damping material (to stop vibration) and an acoustic foam (to absorb sound). A 3mm version would likely have a thin layer of butyl damping material backed by a slightly thicker layer of acoustic foam.

How it works: A two-part process

This combination sheet works in two stages to maximize sound control in a vehicle.

1. Stage 1: Damping vibrations
   • A butyl rubber layer with an aluminum foil facing is applied directly to the metal panels of the vehicle.
   • This adds mass and density to the metal, which dampens vibrations and prevents rattling.
   • This is highly effective against low-frequency road, tire, and engine noise that travels through the vehicle's metal structure.
2. Stage 2: Absorbing airborne noise
   • A layer of sound-absorbing foam is fused to the damping sheet.
   • The foam works like a sponge, absorbing airborne sound waves that have entered the cabin from outside or are reflecting off interior surfaces.
   • This reduces echo, reverberation, and high-frequency noise, creating a clearer audio experience. 

Benefits of car soundproofing

• Comprehensive noise reduction: By addressing both structural vibrations and airborne sound, a foam damping sheet offers more complete soundproofing than a standard damping mat alone.
• Improved audio quality: This dual-action material reduces rattling and absorbs echoes, allowing car speakers to sound clearer and sharper.
• Thermal insulation: In addition to sound control, the foam and butyl layers provide thermal insulation, helping to keep the car's interior warmer in the winter and cooler in the summer.
• Space efficiency: A 3mm composite sheet provides two layers of sound treatment in a single, space-saving product, ideal for the tight confines of a vehicle interior. 

Common installation locations

Acoustic foam damping sheets are installed on a vehicle's interior panels after the upholstery has been removed. Key areas include: 

• Doors: To reduce wind noise and improve speaker performance.
• Floorboards: To block the road and exhaust noise from entering the cabin.
• Roof: To reduce noise from rain and turbulence.
• Trunk and wheel wells: To minimize noise from tires and road friction. 

Installation method

1. Preparation: Remove the interior trim and clean the metal surface with a degreaser.
2. Cut and apply: Trim the sheets to size using a utility knife, then peel off the adhesive backing.
3. Pressure: Apply the sheet firmly to the surface, using a roller to remove air bubbles and ensure a strong bond.
4. Cover: Reinstall the vehicle's interior panels.