Copper Waterstop

Copper Waterstop - Premium Hydraulic Seal Solution

Engineered Fluid Barrier Technology

Our copper waterstop represents the gold standard in permanent joint sealing, utilizing high-purity copper alloys to create impenetrable barriers in critical concrete structures.

Material Science Excellence

• C11000 electrolytic tough-pitch copper (99.9% purity)
• Cold-rolled manufacturing for uniform grain structure
• Natural patina formation for long-term corrosion protection

Performance Advantages

• Absolute watertightness: Zero permeability under 2MPa hydrostatic pressure

• Movement accommodation: Handles up to 5mm joint shear displacement

• Temperature resistance: -50°C to 300°C operational range

Critical Application Scenarios

1. Hydraulic structures: Dam construction joints and spillways

2. Marine construction: Seawater intake structures and locks

3. Nuclear facilities: Containment vessel joints

4. Potable water: Reservoir expansion joints

Technical Specifications

Installation Benefits

• Oxyacetylene welding ensures 100% penetration joints

• Pre-formed corners and transitions available

• No curing time required (immediate watertightness)

Performance Data

• Service life: 50+ years in freshwater environments

• Corrosion rate: <0.002mm/year in seawater

• Fire resistance: Maintains seal at 1000°C

Selection Guidelines

• Centerbulb profile for dynamic movement joints

• Flat rib type for static construction joints

• 90/10 Cu-Ni alloy for marine splash zones

Note: Proper installation requires certified welders and should follow ASTM B152 and EN 1172 specifications. Galvanic isolation is recommended when contacting dissimilar metals.