Water Proof Carpet Underlay – Stage 2




Sheet size:
1800 x 950mm

Closed cell foam

Adhesive Resistance Temperature Range:
-40°C to +110°C (long term) +135°C (short term)

Flame retardant:
Yes, B2



Car Builders Water Proof Carpet Underlay is a single layer, closed cell foam, meaning it does not hold water. It also works great as a thermal and acoustic insulation barrier.

It is suitable for 4×4’s, convertibles and industrial vehicles, which get constantly exposed to wet environments.

Car Builders Water Proof Carpet Underlay will not stay damp, smell, rot or attract mould like pre-dated cotton mill scrap, traditionally used under carpets.

It comes with a peel and stick backing and is easy to cut and install. It is also effective as a thermal barrier to reduce heat transfer from the exterior of your vehicle.  The material will reduce radiant heat by up to 20°C, and can be the difference between discomfort and pleasure.



  • Light Weight
  • Easy installation – just peel off the release liner and adhere to surface.
  • Cuts with scissor and knife
  • Reduces heat transfer
  • Does not rot or deteriorate


  • Under carpets
  • Roof skins
  • Inside cavities
  • 1/4 panels
  • Doors
  • Firewalls


Each box comes with 1 sheet inside, each sheet is 1800mm x 950mm resulting in 1.71sq/m.


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