Hydraulic systems in mobile machinery often operate under extreme temperatures around the world. Seals made of appropriate materials are incorporated to guarantee a reliable function, whatever the conditions. More than 40 years ago, Freudenberg introduced a material made of polyurethane for high-performance seals, setting new standards in the process. Today, with the 94 AU 30000 polyurethane generation, it has succeeded in developing and manufacturing a new, outstanding basic material for seals. The company‘s core competencies include the development of its own materials.