WACKER, the Munich-based chemical group, in collaboration with the society for innovation (INPRO), a joint venture of BASF, Daimler, Siemens, ThyssenKrupp, Volkswagen, and the Federal State of Berlin, has developed a new silicone rubber specifically designed to meet tough automotive-industry demands. This RTV-2 liquid silicone rubber can be easily machine applied, cures at room temperature, and has excellent resistance to oil, heat and blow-by gases. With its outstanding adhesive and sealing properties, this rubber grade enables innovative engine construction solutions. For example, plastic oil pans will be assembled inexpensively and durably in the future thanks to this new silicone adhesive.

Thanks to their great versatility, WACKER silicone elastomers find use in almost all industries, from automotive and mechanical engineering through electronics and textiles, to the construction sector. A wealth of possible applications is due to the inorganic backbone that gives silicone elastomers not only greater heat resistance, but also better resistance to weathering, aging and chemicals than organic polymers.

With ELASTOSIL® 76540 A/B, WACKER now offers the automotive industry an innovative silicone adhesive with high resistance to oil, heat and blow-by gases. This room-temperature-vulcanizing (RTV), two part silicone, developed jointly with the INPRO in Berlin, is extremely robust. Even when immersed in organic liquids such as engine oil at over 100 °C, the silicone sealant shows hardly any swelling and retains its mechanical strength.

Consequently, it bonds extremely reliably and durably to a variety of polymers and metals.