BBA Agrément Certificate
Waterproof membrane composite sheets.
For typical use with concrete slab sections up to 350 mm thick, and vertically with single and double-sided formwork.
Waterproof membrane composite sheets comprising a robust HPDE backing, a pressure-sensitive adhesive, and a trafficable weather-resistant coating with dual adhesive Preprufe® ZipLap™ for added security. GCP has combined its proven Advanced Bond Technology™ together with more than 20 years of major project experience to produce its highest performing waterproofing membrane with even more practical and economic benefits.
The membranes develop a continuous adhesive bond to concrete poured against it. This forms micro-compartments to prevent water migration between the structure and the membrane, substantially reducing the risk of leaks.
Substrates must be regular and smooth with no gaps or voids greater than 12 mm. They must be sound to eliminate movement during the concrete pour.
Can be used in conjunction with:
Minimum laps of 75 mm are recommended.
Composite sheet comprising a robust HDPE backing, a pressure sensitive adhesive and a trafficable weather resistant coating with dual adhesive Preprufe® ZipLap™ for increased security and practicability at overlap.
1170 x 36 500 mm
J40/297 Waterproofing/ Damp proofing membrane
BBA Agrément Certificate.
High-density polyethylene (HDPE).
1.17 x 36.5 m.
Adhesion to concrete
(To BS EN 1372).
Shear strength of joints (to BS EN 12317-2).
Hydrostatic head resistance (to ASTM D5385).
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