Written on 21.02.2012 - Technology
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Lightweight and rigid designs with polyurethane

PU materials for lightweight yet rigid designs are the focal point of Bayer MaterialScience’s exhibit at stand P 14 at the JEC Europe 2012. One current example is the engine compartment lining of a convertible currently on the market. This lining is made of aluminium and subjected to extraordinary loads. As part of a feasibility study, BMS demonstrated that the covering can be manufactured without modification of the design from a glass fibre-reinforced PU system such as Multitec Short Fiber, reducing the weight of the design by more than 20 % compared with the metal version. This weight saving is achieved without compromising the mechanical properties, such as stone impact resistance, says BMS.

The use of lighter-weight components is also becoming increasingly important for rail vehicles. In collaboration with a consortium of businesses, universities and research institutions, BMS has developed a solution for diesel engine enclosures. Because the large component is located between the passenger compartment and the track, it is subjected to extraordinary loads. The Baypreg PU spray system protects the engine against stone impact and the environment against potential oil leaks. It also satisfies the flame retardance and fire protection standards for rail vehicles, says BMS.