PVC WATERSTOPPER V - 300: Top - Notch Waterproofing Solution for Concrete Structures

2.1 Core Features

(1) Premium Material & Superior Performance

• Mechanical Strength: Tensile strength ≥15MPa (exceeding the 12MPa industry minimum), elongation at break ≥320%, and tear strength ≥28kN/m—resisting tearing during concrete pouring and large structural movement.
• Temperature Adaptability: Operating range of -35℃ to 65℃, with brittle temperature ≤-35℃ (no cracking in low-temperature bending tests). It maintains flexibility in cold plateaus and avoids brittleness in coastal high temperatures.
• Environmental Resistance: Water absorption rate ≤0.5%, stable in long-term submerged environments. Resists erosion from weak acids (pH 3-10), alkalis, municipal sewage, and seawater—suitable for sewage treatment plants and coastal projects.
• Aging Durability: After 70℃×168h hot air aging, tensile strength retention ≥88% and elongation retention ≥260%, ensuring a service life of over 35 years in underground/shaded environments.

(2) Specialized V-Shaped Structure & Wide-Width Advantage

• V-Type Core for Displacement: The symmetric triangular elastic core acts as a "buffer spring," absorbing horizontal/vertical displacement up to 25mm—ideal for large joints with significant expansion/settlement (e.g., dam auxiliary structures, tunnel segments).
• 300mm Width Benefits: Covers large joints (20-30cm wide) in one piece, reducing joint quantity by 40% compared to 200mm-wide waterstops. Tolerance of ±9mm ensures compatibility with on-site concrete pouring errors.
• Reinforced Bonding Flanges: 8-10mm thick flanges with diamond-shaped anti-skid ribs (height ≥15mm) increase concrete bonding force by 45% compared to smooth surfaces. Pre-punched stainless steel eyelets (optional) enable secure fixing to steel reinforcement, preventing displacement during pouring.
• Balanced Hardness: Shore A hardness of 72±5, striking a balance between rigidity for installation stability and flexibility for deformation absorption.

(3) Rigorous Quality Compliance

• Certifications: Meets ISO 9001, CE, and NSF/ANSI 61 (for drinking water contact) standards. Each batch passes third-party testing for hydrostatic pressure, low-temperature flexibility, and aging resistance—100% qualification rate.
• Water Pressure Resistance: Withstands ≤0.8MPa hydrostatic pressure (equivalent to 80m water depth), suitable for deep basements, large reservoirs, and underwater tunnels.
• Weldable Joints: Hot-melt welding (140-160℃) creates seamless joints with identical performance to the main body. Factory-supplied L/T-shaped pre-welded pieces reduce on-site workload by 35%.

2.2 Application Scenarios

• Water Conservancy Engineering: Medium-to-large reservoirs, irrigation canals, culverts, and dam auxiliary structure joints (resistant to long-term submerged erosion).
• Municipal Engineering: Underground utility tunnels (main line joints), large rainwater regulation tanks, subway station main structure seams, and cross-river tunnel segments.
• Civil Construction: Super high-rise building basements (floor-wall joints), large retaining walls, and prefabricated concrete component large joints (adapting to structural settlement).
• Special Facilities: Large sewage treatment pools, industrial storage tanks (≥300m³), and tunnel construction joints (withstanding high hydrostatic pressure).

2.3 Installation & Shelving Advantages

(1) Efficient Construction

• Simplified Fixing: Pre-punched eyelets (optional) allow quick attachment to steel reinforcement with tie wires; split formwork presses flanges to keep the V-core centered—avoiding installation errors.
• On-Site Welding: Uses a 240V thermostatically controlled welding iron for seamless joints. No special training required; construction efficiency is 25% higher than traditional waterstops.
• Concrete Compatibility: Works with all standard concrete mixes (C30-C80), activating waterproof performance immediately after concrete hardening (no extra curing time).

(2) Cost-Effectiveness

• Material Efficiency: 300mm width reduces waste by 20% vs. 350mm models for matching joints, lowering material costs. Custom roll lengths (20-25m) minimize leftover waste.
• Low Maintenance: Durable PVC and strong concrete bonding reduce repair frequency. Local grouting resolves leaks without large-scale demolition—saving 50% maintenance costs over 10 years.
• Long-Term Value: 35+ year service life cuts total cost by 45% compared to replacing ordinary sealants every 5-8 years.

(3) Supply & After-Sales (for Shelving)

• Packaging & Delivery: Supplied in 20-25m rolls, wrapped in moisture-proof polyethylene film. Monthly supply capacity: 120,000 meters, 5-7 day lead time after order confirmation.
• Technical Support: Free electronic installation guides, welding videos, and cross-section drawings. On-site technical consultation available for bulk orders.
• Warranty: 5-year material warranty (covers uneven thickness, reduced elasticity). Non-human-caused defects qualify for free replacement.