Key features

• Fully adhered to poured concrete
• Unaffected by hydrostatic pressure
• Unaffected by contamination
• Simple installation, no welding techniques
• Chemically resistant
• Fully adhered watertight overlaps

Applications

• Basement rafts and confined retaining walls with high water table
• Cut and cover structures (e.g. tunnels)

Specifications

Chemical base: HDPE sheet membrane with adhesive layer and sand topping | Colour: White | Effective thickness: HDPE composite > 1.5 mm (ASTM D3767) | Tensile strength: ≥ 25 MPa free film; ≈ 90% retention after heat ageing (ASTM D412 mod) | Elongation: > 550 %; ≈ 80% retention after heat ageing (ASTM D412 mod) | Peel adhesion to concrete: ≥ 1.5 N/mm (ASTM D903 mod) | Joint peel resistance: ≥ 0.8 N/mm (ASTM D1876) | Low temperature flexibility: Unaffected at -23 °C (ASTM D1970) | Water tightness: > 71 m hydrostatic head (ASTM D5385 mod) | Lateral water migration resistance: > 71 m (ASTM D5385 mod) | Shelf life: 24 months | Storage temperature: +5 °C to +30 °C | Application air/substrate temperature: +5 °C to +40 °C | Concrete to be poured within: 45 days of installation

Standards: IS 16471 : 2017 (bonded sheet membrane)