Dhawan Associates

Pre-applied fully bonded HDPE self-adhesive membrane with protective sand layer for below ground waterproofing

SikaProof®-312 HDPE SG IN is a unique HDPE based self adhesive fully bonded sheet membrane comprising of a virgin HDPE layer, coated with a high bond strength adhesive, covered by a weatherproof protective sand sprinkled layer, for below ground waterproofing of reinforced concrete structures. It is loose laid onto prepared substrates or formwork before fixing reinforcement and casting concrete. The adhesive layer is activated when the concrete is poured on the surface and forms a permanent bond with the fresh concrete which will prevent the ingress of water around the structure. Reinforcement can be directly laid on top of the membrane and it does not require screed protection.