Pre-Applied Self-Adhesive Waterproof Membrane

Product Overview

A concrete-bonding membrane engineered for cast-in-place applications. Composite structure includes:

base: Polyester fabric or polymer matrix

Adhesive: Dual-sided polymer-modified bitumen + top-coat bonding activator

Release Systems:

Bottom: Ethylene film / polyester rubber separator

Top: Silicone-coated release paper

Product Classification

By Material Type (EN 13967)

Installation Method

Pre-applied to substrate → Concrete casting → Permanent chemical fusion

Key Features

Substrate Versatility
Bonds to damp/unprimed surfaces (≤15% moisture content)

Concrete Integration
Hydration-activated bond >1.2 MPa (EN 1542)

Structural Resilience

Tensile strength: ≥600 N/50mm (Class R, EN 12311-1)

Puncture resistance: 700 N (EN 14418)

Shear resistance: >2.5 N/mm²

Installation Efficiency
Rapid curing: 90% bond strength in 24h (ASTM D903)

Technical Specifications

Applications

Underground Structures:
basement slabs, retaining walls (external bonded systems)

Transportation:
Cut-and-cover tunnel floors, station foundations

Special Conditions:
Flame-restricted sites (NFPA 241 compliant)
High-humidity environments