PVC WATERSTOPPER 956 Leakproof for Concrete Basement Joints

1. Core Features

• Premium Material Performance: The product adopts high-quality PVC composite material with a tensile strength of ≥12MPa and an elongation at break of ≥250%, meeting the strict performance requirements for plastic waterstops in water conservancy engineering standards . It maintains excellent elasticity within the temperature range of -35℃ to 60℃, with no cracking in low-temperature bending tests and no brittleness under high-temperature conditions . Its water absorption rate is ≤0.5%, ensuring stable waterproof performance even in long-term humid environments .
• Specialized Structural Design: The 250mm width design provides comprehensive coverage of standard and medium-width structural joints. The WN-type cross-section integrates reinforced middle ribs and extended ，where the middle ribs enhance longitudinal tensile deformation capacity to accommodate structural settlement, and the feature anti-skid convex lines that increase friction with concrete, preventing displacement during pouring and ensuring tight bonding . The thickness ranges from 5mm to 8mm (customizable) to adapt to different water pressure environments .
• Rigorous Performance Compliance: The Shore A hardness reaches 65-75, and after 72 hours of hot air aging tests at 100℃, the impact strength retention rate exceeds 80%, demonstrating superior anti-aging performance . It exhibits strong resistance to acids, alkalis, salts, and common chemical media, making it suitable for corrosive environments such as sewage treatment facilities . All indicators fully comply with GB/T 18173.2-2014 Polymer Waterproof Materials - Part 2: Waterstops .

2. Application Scenarios

• Water conservancy projects: Dam foundation joints, culvert expansion joints, and irrigation channel connection seams ;
• Underground engineering: Metro station platform settlement joints, underground utility tunnel construction joints, and basement exterior wall expansion joints ;
• Municipal and industrial projects: Sewage treatment tank circumferential seams, chemical workshop floor joints, and swimming pool structural seams ;
• Civil construction: High-rise building basement floor joints and prefabricated component connection seams .

3. Installation and Advantages

• Efficient and Convenient Construction: The material is flexible and can be arbitrarily cut according to joint lengths, easily adapting to linear, curved, and corner joint shapes . Installation can be achieved through steel bar clamping or formwork pressing without special tools. Joint connections can use hot welding or specialized PVC adhesives to ensure the integrity of the waterproof system, and it is highly compatible with concrete pouring processes, effectively shortening the construction period .
• Cost-Effective Durability: With strong resistance to microbial erosion and insolubility in water and common oils, the product maintains stable performance under normal use conditions with a service life of over 30 years, significantly reducing long-term maintenance costs . Compared to rubber waterstops, it offers higher cost-effectiveness, making it suitable for large-area engineering applications .
• Reliable Quality Assurance: Each batch of products undergoes third-party testing for tensile strength, low-temperature flexibility, and chemical resistance. The finished products are packaged in 20m or 25m rolls (customizable) for convenient transportation and on-site use, fully meeting the acceptance requirements of GB 50208-2022 Code for Acceptance of Construction Quality of Building Waterproofing Engineering .