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.

Shenzhen Xunzhi Building Materials Industrial Co., Ltd. is an integrated enterprise specializing in design, production, and sales, with many years of experience in manufacturing and technical product development. The company has two subsidiaries: Hong Kong Ruisong Technology Co., Ltd. and Sanya Ruisong Technology Co., Ltd. It is a professional manufacturer of door and window seals, curtain wall seals, and vehicle door sealing strips, providing one-stop rubber sealing solutions to global customers for many years.

We specialize in the production and processing of various sealing and molding products, including PVC (Polyvinyl Chloride), EPDM (Ethylene Propylene Diene Monomer), high-grade thermoplastic rubber (Santoprene), silicone rubber, dual-hardness sealing strips, rigid decorative strips, EVA single- and double-sided adhesive products for doors, windows, and curtain walls, as well as molded parts and plastic-rubber injection components.

The company is equipped with a strict quality assurance system, comprehensive testing procedures, and excellent after-sales service. Our products are highly recognized and praised by industry professionals, and are exported to Europe, America, Southeast Asia, and Hong Kong and Macao regions.