Flexible PVC WATERSTOPPER SO250-1 - Efficient Leak - proofing for Construction Joints

1. Core Features

• Superior Material PerformanceAdopts high-quality flexible PVC composite, achieving a tensile strength of ≥11MPa and elongation at break of ≥260%—exceeding the basic requirements of GB/T 18173.2-2014 Polymer Waterproof Materials - Part 2: Waterstops. It retains excellent elasticity across -35℃ to 65℃, withstanding -25℃ low-temperature bending without cracking and high-temperature exposure without brittleness. The water absorption rate is ≤0.4%, ensuring stable performance in long-term humid environments, and it resists erosion from weak acids, alkalis, and municipal sewage, avoiding material degradation in corrosive settings.
• Specialized SO-Type StructureThe 250mm width optimizes coverage for medium-sized joints in underground and water conservancy projects, avoiding waterproof blind spots. The S-shaped outer frame enhances lateral shear resistance to adapt to horizontal structural displacement, while the O-shaped central core provides strong radial compression elasticity to absorb vertical settlement. The 6-8mm thick wings (customizable) feature diamond-shaped anti-skid ribs, increasing bonding force with concrete by 35% compared to smooth surfaces and preventing displacement during pouring.
• Rigorous Performance ComplianceShore A hardness measures 63±4, balancing rigidity for easy installation and flexibility for deformation. After 72 hours of hot air aging at 105℃, tensile strength retention reaches ≥85% and elongation at break retention is ≥78%, demonstrating outstanding anti-aging durability. It meets the V-0 flammability rating (UL94 standard) and passes microbial erosion tests (GB/T 24346-2009), avoiding mold growth in long-term damp conditions. All indicators fully comply with industry waterproofing engineering standards.

2. Application Scenarios

• Municipal engineering: Underground utility tunnel construction joints, rainwater regulation tank circumferential seams, subway station platform expansion joints, and large-scale pipe trench connection seams;
• Water conservancy projects: Small reservoir dam joints, irrigation channel main line seams, culvert expansion joints, and sluice auxiliary structure joints;
• Civil construction: High-rise building basement floor/wall joints, large retaining wall expansion seams, and prefabricated concrete component connections;
• Industrial facilities: Workshop floor medium expansion joints, medium storage tank (50-200m³) circumferential seams, and sewage treatment pool structural joints.

3. Installation and Advantages

• Efficient ConstructionThe flexible texture allows 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 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 250mm width and SO-type structure reduce the number of on-site joints by 30% compared to 180mm-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.