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Basic Information

HTIW products are:

  • Made of synthetic vitreous and polycrystalline mineral wools
  • Defined by a classification temperature above 1000 °C
  • Typically used at temperatures above 600 °C
  • Necessary for many high tech products owing to their versatile characteristics
  • Essential for minimising energy consumption and correlated greenhouse gas emissions

High Temperature Insulation Wools form part of the wider Man Made Mineral Fibres (MMMF) family, which also includes glass and rock wools

HTIWs are produced synthetically from mineral raw materials. There are some important differences between natural fibres and Man Made Mineral Fibres. Besides the differences in the chemical composition, MMMF do not have an organised crystalline structure in the same way as many naturally occurring fibres and as such do not break in the same way, The fibres fracture across the width to create shorter fibres of the same diameter rather than long fibres of thinner diameter. However, as their name suggests, HTIWs are used at much higher temperatures (typically from 600 °C to 1700 °C) than most other glass and rock wools.

Temperature ranges for the application of Inorganic Synthetic Mineral and High Temperature Insulation Wools

Common characteristics of HTIW

  • high temperature resistance
  • low thermal conductivity
  • excellent thermal shock resistance
  • chemically neutral
  • excellent flexibility
  • low thermal mass
  • light weight
HTIW is not asbestos

High Temperature Insulation Wool is often compared to Asbestos.

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