Wet Application Molecular Adhesive Root-Resistant TPO Waterproof Membrane

Description

This high-performance waterproof membrane is constructed with a TPO (Thermoplastic Polyolefin) base layer and a non-bituminous polymer adhesive layer, providing excellent tensile strength, elongation, and long-term durability.

Using proprietary molecular-level self-adhesive technology, the adhesive incorporates hydrophilic functional groups such as hydroxyl (-OH) and carboxyl (-COOH). These groups chemically react with cement hydration products, creating permanent molecular bonds with the substrate for superior waterproof sealing.

Additionally, a chemical root-resistant additive is incorporated into the adhesive layer to effectively prevent root penetration and ensure stable waterproof performance in green or landscaped applications.

Designed for wet substrates and low-temperature conditions (down to -15°C), this pre-applied membrane delivers strong adhesion, durable waterproofing, and eco-friendly performance, free from asphalt-based materials.

Specifications
• Base Material: TPO (Thermoplastic Polyolefin)
• Adhesive Layer: Non-bituminous polymer adhesive
• Thickness: 1.5 mm, 2.0 mm
• Width: 1 m, 2m
• Length per Roll: 20 m (standard)
• Type: Wet-laid, root-resistant

Physical & Mechanical Properties

Tensile Properties
• Maximum Tensile Force: ≥ 12Mpa
• Elongation at Maximum Tensile Force: ≥ 500%

Trapezoidal Tear Strength
• ≥ 250 N

Low Temperature Flexibility
• No cracks at -40°C

Watertightness
• No leakage under 0.3 MPa water pressure for 2 hours

Adhesion Holding Time
• ≥ 20 minutes

Peel Strength (Membrane to Membrane)
• ≥ 60 N/mm

Applications
• Basements and foundations
• Tunnels and subways
• Green roofs and landscaped decks
• Retaining walls
• Bridges and other civil waterproofing projects