Heat Resistant Textiles and Fabrics - HYTEX®

Mid-Mountain manufactures heat resistant textiles and fabric designed for use as thermal barriers and thermal seals in moderate to severe environments.

In 1976, Mid-Mountain started manufacturing Channel Tapes and Tadpole Gaskets for use as seals in pellet stoves and gas fireplaces. Ever since they have engineered a wide range of textiles used as thermal barriers and thermal seals across several industries.

Made with a wide range of substrates, the HYTEX® heat resistant textiles and high temperature fabrics have a continuous operating temperature from 400 °F (204 °C) to 5000 °F (2760 °C) (without any oxygen present). Many standard products are available in configurations of knit or woven fabric, knit or braided rope (both square and round), knit or woven tape, and knit or braided sleeving.

Mid-Mountain can also laminate with foil or pressure-sensitive adhesive or apply a specialty coating for applications that require more heat, chemical or abrasion resistance.

Heat Resistant Fabric Features

  • High strength
  • Low smoke emission
  • Abrasion resistant
  • High dimensional stability
  • Excellent thermal properties
  • Chemical resistant

Heat Resistant Fabric Applications

  • Gaskets
  • Furnace seals
  • Oven and door seals
  • Draw cord for insulation blankets
  • Electrical insulation
  • Engine exhaust covers
  • Removable Insulation blankets and pads
  • Thermal insulation
Series Substrate Configuration Continuous Use Limit
400 Kevlar® Woven Fabric
Knit/Braided Rope
Knit/Braided Sleeving
450 °F • 232 °C
500 Nomex® Woven Fabric
Knit/Braided Rope
Knit/Braided Sleeving
450 °F • 232 °C
700 Fiberglass/Kevlar® Woven Fabric
Woven Tape
650 °F • 345 °C
1000 Fiberglass Woven Fabric
Woven Tape
Woven Bolt Hole Tape
Knit/Braided Rope
Knit/Braided Sleeving
Tadpole Tape
Braided Sleeving
Woven Channel Tape
1000 °F • 538 °C
1000 Aluminized Fiberglass Woven Fabric with
Aluminum Foil
1000 °F • 538 °C
1000 Woven Tadpole Tape Fiberglass Woven Fiberglass
Tadpole Tape
1000 °F • 538 °C
1400 Fiberglass Woven Fabric
Knit/Braided Rope
Knit/Braided Sleeving
1400 °F • 760 °C
2200 Ceramic Woven Fabric
Braided Sleeving
2200 °F • 1205 °C
2500 Ceramic Woven Fabric
Braided Sleeving
2500 °F • 1370 °C
5000 Carbon Woven Fabric
Knit/Braided Rope
Knit/Braided Sleeving
5000 °F • 2760 °C

Kevlar® and Nomex® are registered trademarks of the E.I. DuPont Company, Wilmington, DE.

Heat Resistant Textiles and Fabrics - HYTEX®

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