High-Pressure Resistant Swelling Waterstop – Rubber Seal for Deep Foundation Waterproofing

Product Overview This high-pressure water swelling rubber seal is designed to withstand deep foundation and high water column environments. It forms a watertight seal in cold joints, gaps, and casting interfaces.

Features Expands to block high-pressure water Excellent compression recovery Resists soil chemicals and alkali Performs under dynamic joint conditions.

Technical Specifications Material: Modified hydrophilic synthetic rubber Expansion: 150–300% (after 7 days) Pressure.

Resistance: ≥ 0.6 MPa Hardness: Shore A 50–65 Typical Sizes: 20×10mm, 25×8mm Service Temperature: -35°C to +80°C.

Applications Dam and hydropower station joints Foundation slab interfaces Tunnel segment gaskets Water-retaining walls in wet zones.

Customization Options Jointed shapes for corners and angles Integrated with reinforcing mesh Special formula for salty groundwater Color-coded per application.