Car Builders Water Proof Underlay 1800X950x10mm

Code: WU


In Stock


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 constant exposure to wet environments.

Our Water Proof Carpet Underlay will not stay damp, smell, rot or attract mold 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


  • 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

Water Proof Underlay 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

Sheet dimensions

Sheet size: 1800mm x 950mm (1 sheet per box)




Closed cell foam

Adhesive Resistance Temperature Range:

-40°C to +110°C (long term) +135°C (short term)

Flame Retardant: Yes, B2