Self-Adhesive Polymer-Modified Bitumen Waterproofing Membran

Product Overview

The self-adhesive polymer-modified bitumen waterproofing membrane is formulated using SBS (styrene-butadiene-styrene) and other high-performance synthetic rubbers, premium-grade road bitumen, and advanced agents.

The top surface is available in multiple protective finishes, including polyester film (PET), polyethylene film (PE), aluminum foil, or silicone-coated release film. The bottom surface is protected with a silicone-coated release liner to prevent premature adhesion during installation. This structure forms a high-performance, self-adhesive polymer-modified bitumen membrane without a reinforcement layer.

Product Features

Cold-Applied Installation: No open flame or hot work required. Safe, energy-efficient, environmentally friendly, and cost-effective.
Excellent Adhesion Performance: Provides long-term viscoelastic bonding, ensuring strong and durable waterproof integrity.
High Flexibility & Elongation: Superior resistance to shear deformation and structural movement.
Outstanding Low-Temperature Resistance: Maintains flexibility and performance even in cold climate conditions.

Product Classification & Specifications

The membranes are categorized into:

Type I and Type II, based on performance grade
Surface finishes include:
- Polyethylene film (PE)
- Polyester film (PET)
- Double-sided self-adhesive without surface film (Type D)

Scope of Application

Non-exposed roofing systems and underground waterproofing works
Water channels, swimming pools, and other municipal engineering projects
Open-cut metro and tunnel waterproofing systems
Projects where open flame installation is prohibited
Suitable for cold regions due to excellent low-temperature performance

Material Selection Guidelines

For non-exposed applications, PE or PET surface films are recommended.

For multi-layer systems, PE, PET, or double-sided self-adhesive (non-surfaced) membranes may be used.

For underground primary waterproofing, the recommended thickness is: