Daetwyler for reliable sealing systemsDaetwyler is a leading provider of innovative, custom-designed solutions for sealing in high quality applications in the tunnelling industry, offering a wide range of reliable gaskets to meet demanding requirements. Used around the world in geologically and hydrologically challenging environments, applications range from metros in Singapore to the Marmaray railway tunnel beneath the Bosporus in Turkey. Prestigious projects in Europe, Asia, the US and Canada, India and Australia can be added to the ever-lengthening Daetwyler reference list. For more about Daetwyler and its products, click here. 07/11.