Tunnel Segment Gasket Hydrophilic Expansion Rubber Seal 

Play a good waterproof performance and weather resistant property in a big temperature range

1)       Material: Nature Rubber, Polyether PU

2)       Hardness:35-50SHA

3)       Solid rubber extrusion

3)  Excellent flexibility, extension and expansion waterproof performance.

4) Volume expansion ratio in pure water reaches 150%-800% (adjustable). The expansible body can keep rubber away from water effects in respect of flexibility and extension.

5) It has good water and chemical medium resistance as well as excellent durability. It is free from hazardous substances and swelling precipitate, which does not pollute environment.

6) Play a good waterproof performance and weather resistant property in a big temperature range

7) Customized profiles are available

Products are applied for duct piece joint of shield segment tunnel, conduit joint, underground engineering, infrastructure deformation joint, construction joint and settlement joint.

Main products include shield segment waterproof rubber seal, hydrophilic expansion rubber seal.

Products are applied in many important projects both in domestic and abroad, such as Beijing subway, Shanghai subway, Guangzhou subway, Korea Drainage Works.

In the process of participating in engineering construction, our company have not only mastered technical capacity of producing shield segment waterproof materials, but also accumulated rich experience on mechanical structure, mechanical conditions and seal mechanism of such products. Our company can design a suitable segment seal gasket through finite element analysis, various stress tests of finished products and water pressure-resistant tests under different conditions in accordance with duct size, force size and watertight indexes provided by the customer

Hydrophilic Expansion Rubber Seal; Water-swellable Rubber Seal; Hydro-swelling Rubber Seal