Car Builders Water Proof Underlay 1800x950x10mm

Car Builders Water Proof Underlay 1800x950x10mm


 $80.00 KIT

Quality ISO 9001 certified system

There is no substitute for 50 years' experience! That's why Rare Spares guarantee both the quality & fitment of their products!

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 4x4'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