Custom Color Hydrophilic Strip Waterbar Water Stop Tape For Rebar And Concrete

Pre Applied Water Swelling Rubber Tape   Bonded Expansion Seal for Rebar and Concrete

Product Overview This water-swelling rubber tape is pre-applied to steel rebar or formwork before concrete casting. Upon water exposure, it expands to seal cold joints and prevent seepage.

Features Ideal for pre-application to reinforcement steel Expands reliably when in contact with water Suitable for complex concrete interfaces Quick installation on rebar grids.

Technical Specifications Material: Hydrophilic rubber Initial Size: 10×5mm, 20×10mm, 25×7mm Expansion Capacity: 200–400% Bonding Strength: ≥ 1.2 MPa Working Temp: -25°C to +70°C.

Applications Raft slabs with heavy steel structures Concrete shear wall construction Pile cap waterproofing Shallow tunnels with tight reinforcement.

Customization Options Pre-rolled lengths or cut sections Reinforced mesh embedded option Color customization on demand Contractor-branded packaging.