Permanent seals for tunnelling and civil engineering

Tunnel segment gaskets and hydrophilic seals

Our sealing systems are developed specifically to suit the requirements of each tunnel. We can offer compression gaskets and hydrophilic seals in combination as primary and secondary seals or as co-extruded solutions. Daetwyler holds a number of international patents for these products.

Joint seals

Our permanently elastic profiles are highly adaptable, providing non-ageing, weather resistant seals for joints. Profiles for drainage are used for sealing joints later on. Working hand in hand with our customers, we develop new profiles for refurbishment projects.

Pipe seals

The material and shape of these products are tailored to the specific application to ensure absolute reliability.