Graphite Felt – Best Thermal Insulation Materials for Industrial Furnaces

  • high tensile strength, high tensile modulus.
  • low density, high temperature resistance, ablative resistance, corrosion resistance.
  • high electrical and thermal conductivity, low thermal expansion, and self-lubrication.
Soft & rigid graphite felt samples are displayed.

Graphite felt, also known as graphite fiber felt, is mainly used as a thermal insulation and refractory material for various industrial furnaces including single crystal furnaces, carbonized furnaces, quartz furnaces, vacuum furnaces, thermal balance reaction furnaces, heat treatment furnaces, sintering furnaces, welding furnaces, and high-pressure furnaces for metallurgy, machinery, and chemical engineering industries. It is also used as a filter material for high-purity corrosive chemical reagents.

Graphite felt has a carbon content of over 99%, which is higher than carbon felt. Under non-oxidizing atmosphere conditions, its working temperature can be over 2000 °C. It works with graphite composite boards and graphite special-shaped parts to form the insulation layer of industrial furnaces.

Graphite felt is divided into soft graphite felt and rigid graphite felt.In addition, carbon felt before high-temperature graphitization is also an excellent high-temperature thermal insulation material and has good adsorption properties for inorganic gases and the like.