Shenzhen Xunzhi Building Material Industry Co., Ltd.
0 gap sealing rubber strip canbe used for 15 years
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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.