PVC WATERSTOPPER DB240 - 1: High - Elastic Waterproof Marvel for Concrete Joints

1. Core Features

(1) Premium Material & Stable Performance

• Tensile strength ≥10MPa, elongation at break ≥300% , ensuring resistance to tearing during structural deformation;
• Operating temperature range of -35℃ to 65℃, withstanding -30℃ low-temperature bending without cracking and high-temperature exposure without brittleness;
• Water absorption rate ≤0.5% , maintaining stability in long-term humid environments;
• Resistance to weak acids (pH 3-10), alkalis, and municipal/light industrial sewage, avoiding material degradation in corrosive settings like wastewater treatment pools.

(2) Specialized Dumbbell-Type (DB) Structure

• A central bulbous elastic core that absorbs horizontal/vertical displacement up to 15mm, adapting to structural expansion and settlement;
• 6-8mm thick bonding wings with diamond-shaped anti-skid ribs, increasing adhesion to concrete by 35% compared to smooth surfaces , preventing displacement during pouring;
• Shore A hardness of 60±5 , balancing rigidity for easy installation and flexibility for deformation.

(3) Rigorous Quality Compliance

• After 70℃×168h hot air aging, tensile strength retention ≥85% and elongation at break retention ≥240% , ensuring long-term durability (service life over 35 years under normal use);
• Meets UL94 V-0 flammability rating and passes microbial erosion tests, avoiding mold growth in damp environments;
• Each batch undergoes third-party testing for core indicators (hardness, tensile strength, low-temperature flexibility), with a 100% qualification rate .

2. Application Scenarios

• Municipal engineering: Underground utility tunnel segment joints, rainwater regulation tank circumferential seams, subway station auxiliary structure expansion joints, and large pipe trench connections ;
• Water conservancy projects: Small reservoir dam joints, irrigation channel main line seams, culvert expansion joints, and farmland water conservancy pond structural seams ;
• 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 (50-180m³) circumferential seams, and sewage treatment pool edge joints .

3. Installation & Advantages

(1) Efficient Construction & Strong Compatibility

• Flexible texture allows easy cutting and bending for linear, curved, or right-angle joints—no special tools required;
• Installation uses ordinary steel bar clamps or template pressing to keep the central core centered in the joint ;
• On-site joints are sealed with hot-melt welding (300W PVC gun) or specialized adhesive, reducing joint quantity by 30% compared to 180mm-wide models, and cutting construction time by 20-25%.

(2) Cost-Effective & Low Maintenance

• The 240mm width reduces material waste by 25% for medium joints compared to wider (≥260mm) alternatives;
• Insoluble in water, industrial oils, and common solvents, minimizing long-term maintenance and repair costs ;
• Customizable thickness (4-10mm) and roll length (20-25m) , adapting to project-specific needs and avoiding excess inventory.

(3) Reliable Supply & After-Sales

• Packaged in moisture-proof film rolls to protect against sun exposure and rain during transportation/storage ;
• Monthly supply capacity of 100,000 meters, with 5-7 day delivery lead time;
• Provides free technical support (installation guidance, cross-section drawings) and a 2-year quality guarantee—free replacement for non-human-caused quality issues.