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HKO | Donnerstag, 24 April 2014
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Calcium-magnesium silicate


Calcium-magnesium silicate fibres (CMS-Bio fibres) are manufactured in a molten bath of silicium dioxide (SiO2), calcium oxide (CaO) and magnesium oxide (MgO) by centrifugal casting. This process produces a white, fleecy fibre with high temperature resistance, low thermal conductivity and relatively good chemical resistance. Due to their chemical composition, CMS-Bio fibres have exceptional bio-solubility. For this reason, a hazardous substances classification is not required.

Since pure CMS-Bio fibres cannot be processed into textile products, organic fibres must be used as a so-called "spindle accessory". The percentage of organic fibres in CMS Bio products and the thus unavoidable volatile solids is around 15-20%.
Furthermore, textile CMS Bio fibre products are strengthened, either by reinforcement with glass yarn or using chrome steel wire.

The maximum temperature resistance of CMS-Bio fibre products with glass reinforcement is approx. 550 °C, and CMS-Bio products with chrome steel wire can be used at a maximum temperatures of around 1000 °C. However, the influence of the medium and the mechanical stress of the material must be taken into consideration.

Thanks to their bio-solubility, CMS-Bio products have only a conditional media resistance. In particular, contact with water must be avoided.

Types available:


Hakpolan-1100-Bio consists of bio-soluble, mineral fibres and is based on SiO 2, CaO and traces of MgO, Fe2O3 and Al2O3.


  • Application temperature up to approx. 1100°C
  • Ceramic-fibre free

Types available:


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