Fiberfrax® High‑Index Fibres

Fiberfrax® Refractory Ceramic Fibres are a range of high-temperature fibres designed for use in a variety of industrial and commercial applications. Manufactured from alumina-silica materials, these fibres offer such characteristics as high temperature stability, low thermal conductivity, low heat storage, excellent thermal shock resistance, light weight and superior corrosion resistance. Fiberfrax Refractory ceramic fibres are thermally stable at temperatures up to 1260 °C.

Unifrax offers several high-index fibres ranging in fibre index from 68% to upwards of 95%. Fiberfrax® High-Index Fibres have proven to be a good reinforcement material for use in automotive brake lining and other friction materials. Fiberfrax® High-Index Fibres can also be used as a mechanical thixotrope in coatings applications, offering reinforcement and fire resistance as additional benefits.

Fibre index is a measurement that determines the amount of fiberised material in the actual fibre. During fibre manufacturing, “shot” or unfiberised material is produced as a natural product of the furnacing process. Unifrax has the ability to reduce the amount of shot in a fibre by controlling the furnacing process or by washing out the unfiberised material. Unifrax offers several high-index fibres ranging in fibre index from 68% to upwards of 95%.

Fiberfrax high-index fibres come in a variety of products such as:

  • HS 70/HS 70C
  • HS 95/HS 95 C
  • HSA-HP/HSA-K

Documents.

Safety Data Sheets

Fiberfrax® High‑Index Fibres

Product Information Sheet

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