Isolation materials reduce the diffusion of heat. They are thus deployed where energy has to be saved or where the environment has to be protected from a heat source. In the broadest sense, they therefore are seals, whereupon the “medium” – unlike the traditional sealing situations – is the heat, which has to be stemmed. For our products, only fibres of glass and silicon oxide are used. Isolations made of these materials are harmless for health.