Durable PVC WATERSTOPPER V300-1 - Ideal for Concrete Joints in Infrastructure Projects

1. Core Features

• Superior Material PerformanceThe product adopts a high-quality flexible PVC composite formula, with a tensile strength of ≥12MPa and an elongation at break of ≥250%—exceeding the basic requirements of GB/T 18173.2-2014 Polymer Waterproof Materials - Part 2: Waterstops. It maintains excellent elasticity within the temperature range of -35℃ to 65℃, withstanding low-temperature bending tests at -25℃ without cracking and resisting brittleness under high-temperature exposure. Its water absorption rate is ≤0.4%, ensuring stable performance in long-term humid environments, and it can resist erosion from weak acids, alkalis, and common industrial sewage, avoiding material degradation in corrosive settings.
• Specialized V-Type StructureThe 300mm width is optimized for large joints in water conservancy and underground engineering, ensuring full coverage of seam areas without leaving waterproof blind spots. The V-type (triangular) central core enhances radial compression and lateral shear resistance, effectively absorbing structural settlement and thermal expansion to prevent seal failure. The extended wings (6-8mm thick, customizable) feature diamond-shaped anti-skid ribs that increase the bonding force with concrete by 35% compared to smooth surfaces, preventing displacement during concrete pouring and ensuring tight integration with the structure.
• Strict Performance ComplianceThe Shore A hardness of the product is 65±4, balancing rigidity for easy installation and flexibility for deformation. After 72 hours of hot air aging at 105℃, its tensile strength retention rate reaches ≥85% and elongation at break retention rate is ≥78%, demonstrating outstanding anti-aging durability. It meets the V-0 flammability rating (UL94 standard) and passes microbial erosion resistance tests (GB/T 24346-2009), avoiding mold growth or performance decline in long-term damp conditions. All indicators fully comply with industry waterproofing engineering standards.

2. Application Scenarios

• Water conservancy projects: Medium-sized reservoir dam joints, irrigation channel main line connection seams, culvert expansion joints, and sluice structural seams;
• Municipal engineering: Underground utility tunnel main body joints, rainwater regulation tank circumferential seams, subway station platform expansion joints, and large-scale tunnel waterproof walls;
• Industrial facilities: Workshop floor large expansion joints, medium-to-large storage tank (50-1000m³) circumferential seams, and chemical sewage treatment pool structural joints;
• Civil construction: Super high-rise building basement floor/wall large joints, large retaining wall expansion seams, and prefabricated concrete component large-size connections.

3. Installation and Advantages

• Efficient ConstructionThe 300mm width and flexible texture allow easy cutting and bending to fit linear, curved, or right-angle joints—no special shaping tools required. Installation can be completed using ordinary steel bar clamps or template pressing, and on-site joints can be sealed with hot-melt welding (using a 300W PVC welding gun) or specialized waterproof adhesive, ensuring the integrity of the waterproof system. It is highly compatible with concrete pouring processes, reducing the joint waterproofing construction time by 20-25% compared to traditional narrow waterstops.
• Cost-Effective DurabilityInsoluble in water, industrial oils, and common chemical solvents, the product maintains stable waterproof performance for over 35 years under normal use, significantly reducing long-term maintenance and repair costs. Its large-width design reduces the number of on-site joints by 40-50% compared to 150mm-wide waterstops, lowering material waste and labor costs, and achieving overall project cost savings of 15-20%.
• Reliable Quality AssuranceEach batch undergoes third-party testing for key indicators such as tensile strength, low-temperature flexibility, aging resistance, and chemical resistance, with a 100% qualification rate. Finished products are packaged in 20m rolls (customizable) with moisture-proof film, facilitating transportation and on-site storage. It fully meets the acceptance requirements of GB 50208-2022 Code for Acceptance of Construction Quality of Building Waterproofing Engineering and provides a 10-year quality guarantee.