The water expansion strip is based on the good bentonite, which is modified by physical and chemical, and  it have excellent water absorption and elastic properties of the general elastomer. On the surface of the concrete construction joint and the post-pouring joint, the concrete is placed on the interface of the concrete.

1. Type: BW  

2. Size: 15*20mm, 20*30mm, 20*50mm, 10*40mm etc.

3. Certification: ISO9001, SGS.

Applicable scope 
-Our product is used in water stop .

- Anti-permeability of concrete construction joints .

-post pouring seam and wall pipe, board joints, cracks in the wall and treatment of leakage of concrete crack.

- It is widely used in basement, underground garage, storage tank, sedimentation rank.

- Subway, highway, railway tunnel and other underground construction projects.