Thermal protection sleeve

braidedfor cablesfiberglass

Glass sleeves For electrical and thermal insulation are characterised by the type of glass fibre, the diameter of the filament, the fineness of the yarn and the type of sizing. The twisted or textured (roughened) E-glass fibres (Alumoboron silicate glass) we generaly use, are characterised by a water absorption rate of less than 0.1% and can therefore be described as non-hygroscopic (water resistant). They do not contain any substances that could be a danger to health or the environment and are therefore regarded as safe altematives to asbestos as far as safety technology and ecology are concerned. They confomn with the BGA standards XIV and LII (German Federal Health Authority). Twisted threads and yarns or assembled yarns with a protective twist, have the advantage of possessing high tensile strength (high weight related tenacity at low specific density of about 2.6 g/cm3) and low stretching capabilities (dimensional stability). Apart from E-glass seals, which have a temperature resistance of a maximum of +600 °C our programme offers quarz-glass braidings able to withstand temperatures of up to +1000 °C. In accordance with DIN 4102 all BIW glass fibre products belong to class Al or A2 "non flammable materials". Depending on the individual application, seals can be desized thermally, treated with acrylates, soaked in not hardened epoxy resins (B-state) or immersed in chloroprene rubber (CR, i.e. Neoprene by DuPont) and in ethylene vinyl acetate (EVA, i.e. Levaprene by Bayer) (i.e. used as windings and spacers in the construction of power generators).