Car Builders Mass Noise Liner Lite is a 8mm thick, heavyweight, acoustic barrier. This product is used over the top of sound deadening (stage 1) which is applied directly onto the sheet metal. Sound deadening stops noise created by panel vibration whereas Mass Noise Liner (stage 2) reduces airborne noise generated from the engine, road etc. This premium carpet underlay is an OEM product used in high-end luxury vehicles. Mass Noise Liner replaces cotton jute or shoddy, creating far superior sound proofing results.

Construction
2mm Mass Loaded vinyl upper layer, coupled with a 6 m 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. 

Features/Advantages

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

Applications

• 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 6s, V8s and flat fours.
• Engine rooms, compressors etc.