PVC WATERSTOPPER WO230: High - Efficiency Waterproofing Solution for Concrete Joints

1. Core Features

(1) Premium PVC Material & Superior Performance

• Mechanical Strength: Tensile strength reaches 16MPa (exceeding the 12MPa industry minimum), elongation at break ≥380%, and tear strength ≥30kN/m —ensuring resistance to tearing during concrete pouring and structural deformation.
• Temperature Adaptability: Operating range of -35℃ to 65℃, with brittle temperature ≤-35℃ . It withstands cold northern winters (no cracking in low-temperature bending tests) and hot southern summers (no softening or brittleness), adapting to diverse climatic conditions.
• Environmental Resistance: Water absorption rate ≤0.5% , maintaining stability in long-term submerged environments. It resists erosion from weak acids (pH 3-10), alkalis, municipal sewage, and road salts, suitable for sewage treatment plants and coastal projects.
• Aging Durability: After 70℃×72h hot air aging, tensile strength retention ≥90% and elongation at break retention ≥90% , ensuring a service life of over 30 years in underground or shaded environments.

(2) Specialized WO-Type Wavy Structure

• Wavy Elastic Core: The unique wavy central body absorbs horizontal and vertical displacement up to 16mm—25% higher than ordinary flat waterstops—effectively adapting to concrete expansion, contraction, and lateral movement . Its curved design mimics the deformation adaptation principle of specialized elastic 止水件，enhancing 贴合性 with irregular joint surfaces.
• Reinforced Bonding Flanges: 6-8mm thick flanges with diamond-shaped anti-skid ribs (height ≥10mm) increase bonding force with concrete by 35% compared to smooth surfaces . Pre-punched brass eyelets enable secure fixing to steel reinforcement, preventing displacement during concrete pouring .
• Balanced Hardness: Shore A hardness of 75±5 , striking a perfect balance between rigidity for stable positioning during construction and flexibility for deformation absorption after concrete hardening.

(3) Rigorous Quality Compliance

• Certifications & Standards: Meets ISO 9001, ISO 14001, ISO 45001, and CE certifications , with each batch passing third-party testing for hardness, tensile strength, low-temperature flexibility, and hydrostatic resistance—achieving a 100% qualification rate.
• Water Pressure Resistance: Passes hydrostatic pressure resistance tests up to 0.6MPa, effectively blocking medium water pressure penetration—suitable for basements, water tanks, and small reservoirs .
• Weldable Joints: Compatible with hot-melt welding technology (welding temperature 140-160℃), enabling seamless on-site joints that maintain the same waterproof performance as the main body .

2. Application Scenarios

• Municipal Engineering: Underground utility tunnels, rainwater regulation tanks, subway station basements, and underground car park expansion joints (paired with split formwork for optimal installation).
• Water Conservancy Projects: Small-to-medium irrigation channels, farmland water conservancy ponds, culverts, and reservoir auxiliary structure joints (resistant to irrigation water erosion and long-term submersion).
• Civil Construction: High-rise building basements, retaining walls, lift shafts, and prefabricated concrete component joints (adapting to structural settlement and temperature-induced displacement).
• Special Facilities: Swimming pools (resistant to chlorine corrosion), sewage treatment plants, and small industrial storage tanks (≤150m³).

3. Installation & Advantages

(1) Efficient Construction & Compatibility

• Simplified Fixing: Pre-punched eyelets in flanges allow quick attachment to steel reinforcement with tie wires; alternatively, split formwork presses the flanges to ensure the wavy core is centered in the joint —avoiding displacement during concrete pouring.
• Easy On-Site Welding: Butt joints are seamlessly welded using a 240V thermostatically controlled welding iron. Factory-welded L/T-shaped pieces are available to reduce on-site workload by 30% and ensure joint reliability .
• Concrete Compatibility: Works with all standard concrete mixes, with sealing performance activating immediately after concrete hardening—no additional curing time required .

(2) Cost-Effective & Low Maintenance

• Material Efficiency: The 230mm width reduces waste by 22% compared to 280mm-wide alternatives for matching joints, lowering material costs .
• Minimal Maintenance: The durable PVC material and strong concrete bonding minimize repair needs. If leakage occurs, local grouting can address issues without large-scale demolition .
• Long-Term Value: A single installation provides over 30 years of waterproof protection, with total cost 40% lower than frequent replacement of ordinary sealants (which require replacement every 5-8 years) .

(3) Reliable Supply & After-Sales

• Packaging & Delivery: Supplied in 20-25m rolls (custom lengths available), packaged in moisture-proof polyethylene film to avoid sun exposure and rain damage . Monthly supply capacity reaches 10,000 meters with a 5-7 day lead time .
• Technical Support: Free provision of installation guides, welding operation videos, and cross-section drawings. Online technical support is available 24/7, and on-site consultation is provided for large projects .
• Quality Guarantee: 5-year warranty against material defects (e.g., uneven thickness, reduced elasticity). Non-human-caused quality issues are eligible for free replacement .