Mass Noise Liner Lite - Stage 2

Stage 2 Premium underlay sound blanket
Mass Noise Liner LITE - [1 sheet at 1580mm x 950mm]
Mass Noise Liner LITE - [1 sheet at 1580mm x 950mm] 1 sheet at 1580mm x 950mm


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Car Builders Mass Noise Liner Lite is the best carpet underlay on the market, hands down. It is a heavy weight sound barrier, with a total thickness of 8mm it will package under your carpet as a premium carpet underlay as used in high end luxury vehicles.

2mm Mass Loaded vinyl upper layer, coupled with a 6mm 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 
  • Non stick - removable
  • Cuts with scissor and knife
  • Reduces heat transfer
  • Does not rot or deteriorate


  • Under carpets
  • Firewalls

Designed to go on top of our Stage 1 Sound Dampening sheets. The lower foam layer works as a de-coupling layer to suspend the MLV (mass loaded vinyl) which is effectively a sound blanket. The approach using these 3 x materials (dampening, de-coupling and blocking) is the most you can do in the minimal space between your carpet and floor pan. This is the same approach used by noise, vibration and harshness engineers when designing high end luxury vehicles.

This product is durable and non-stick, it does not require glue and will sit under its own weight. If desired, you can glue the MNL Lite in position by applying contact adhesive to the foam side.

Ideal for:

Diesel vehicles
4WD's where water and dust exposure is a problem
Servicability when your floor covering and underlay needs to be removable.

Note: Due to the weight of our Mass Noise Liner and the fact it is non stick, it is not recommended for use on the underside of horizontal surfaces (roofs). For this application you should use our light weight foam such as our 6mm Insul-layer or Van Liner 

Mass Noise Liner Lite Carpet Underlay FAQ

What thickness carpet underlay should I use?

Carpet underlay thicknesses range between 4-12mm. This range allows you to insulate effectively and fit it under tighter areas such as the transmission tunnel.


1 x box contains 1 sheet at 1580mm x 950mm 2mm thick mass loaded vinyl with 6mm closed cell foam (8mm thick total).

Sheet length: 1580mm
Sheet width: 950mm
Sheet thickness: 8mm
Weight: 4kg/sqm
Temperature resistance: 130°C
Flammability: UL94 V0
Foam flame retardant: Grade B2
Tensile strength: ≥ 2.65Mpa


Ideal for: 4WD's - 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 particularly common in 6's, V8's and flat fours. Engine rooms, compressors etc

Customer Reviews

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By: on 4 January 2021
Nice and heavy with what feels like a reasonably rugged foam back. Perfect for under the formed vinyl in the 4wd. Make sure you get the vinyl tape kit with it if you want to form it into foot wells and have it hold the shape.