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RIW Liquid Asphaltic (LAC)

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Code Product Name Price Qty

RIW Liquid Asphaltic (LAC)

RIW Liquid Asphaltic (5 Litre)

RIW Liquid Asphaltic (LAC)

RIW Liquid Asphaltic (25 Litre)

Discounts for larger quantities!

We provide competitive discounts for bulk orders.

Please contact us by either email at [email protected] or call 01268 571571 and we will calculate your unique discount for larger quantities.


RIW Liquid Asphaltic Composition (LAC) is a two coat, cold applied damp proof membrane which dries to a uniform gloss black finish. The coating is a solution of natural and petroleum bitumens in white spirit.


  • Water and water vapour barrier
  • Radon barrier
  • Elastic and flexible
  • Easily applied and adapted to difficult details
  • Sulphate resistant


Waterproofing and vapour proofing of:

  • Ground floors
  • Superstructures
  • Basement and Sub Structures
  • Retaining Walls

Applied to:

  • Concrete
  • Masonry
  • Steel


Asphaltic Composition should be applied in two coats at a minimum application rate of 1.7m2 / litre for the first coat and 2.5m2 / litre for the second coat, unless noted otherwise.



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