Car Builders Mass Noise Liner is a 12mm thick, heavy weight barrier as used in high end luxury vehicles. It is the most effective sound proofing material on the market.

2mm Mass Loaded vinyl upper layer, coupled with an 10mm closed cell foam to create the most effective means of acoustic blocking. Our flexible closed cell foam is water resistant and offers superior thermal insulation.


  • Heavy duty sound blocking
  • Water resistant 
  • Removable
  • Cuts with scissor and knife
  • Reduces heat transfer
  • Does not rot or deteriorate


  • Firewalls
  • Cargo areas
  • Van floors
  • Boot floors

It is not 100% necessary to put Stage 1 Sound Deadener underneath Mass Noise Liner on cargo area floors or van floors due to the metal already being fairly rigid from the ribs. The Mass Noise Liner will be an effective floor sound proofing by itself. 


Ideal for:

  • 4WD's and muscle cars - firewall barrier to reduce engine noise
  • Trucks - reduce engine noise and heat on floors and firewalls, great for serviceability
  • Exhaust drone - drop in as a boot liner to reduce exhaust drone particular common in 6's, V8's and flat fours.
  • Engine rooms, compressors etc


Note: due to the weight of our Mass Noise Liner it is not recommended for use on the underside of horizontal surfaces. For these applications you should use our light weight foam such as Acoustic Liner, Water proof carpet underlay, Under bonnet insulation or our 6mm Insul-layer.


Sheet length: 1600mm
Sheet width: 950mm
Sheet thickness: 12mm (2mm vinyl, 10mm foam)
Weight: 4.5kg/sqm
Temperature resistance: 130°C
Flammability: UL94 V0
Foam flame retardant: Grade B2
Tensile strength: ≥ 2.65Mpa
Shipping Weight 8.0000kg


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