China supplier rubber waterstop strip/bentonite swelling water stop bar

hydrophilic expansion water stop strip, is also called water expanding waterstop strip, water swelling bar.

It is made from quality water expanding rubber, can under vulcanization for better performance. It includes PZ type and PN type. We can provide products of 150%-600% volume expansivity.

Application: 

It is widely used in air defence swimming pools, sewage solution and treatment project, underground railway, culvert, tunnels etc., in the construction of concrete construction joint, expansion joint and crack, construction site.

-concrete construction joint seepage-proofing

-building elements assembly joint water-proof

-shield method tunnel segment joint water sealing

-slab joint wall cracks water blocking