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About Pyropel® Polyimide Products

Pyropel® is a unique, rigid, lightweight polyimide fiberboard with superior insulating properties across a broad temperature range.  Through a patented process in which it is three-dimensionally reinforced, it is self-supporting and exceptionally tough and durable.  Pyropel offers an unmatched combination of insulating performance and assembly advantages.  Manufactured in a wide variety of product types, Pyropel is available in a thickness and density to meet your specific application needs.

Produced from 100% thermoset polyimide, Pyropel products all inherently have outstanding thermal, mechanical, and chemical properties of polyimides.  These inherent properties combined with the unique structure of Pyropel products allows the thermal and mechanical properties to be balanced, resulting in overall system performance to be improved.

Pyropel Polyimide Products have been commercially available for 30 years and are used in a wide variety of applications and industries.      

Featured Benefits

Unmatched Versatility

  • Exceptional rigidity, resilience, strength, and versatility
  • High-temperature resistance
  • 100% chemical-resistant polyimide
  • Not chemically affected by solvents, acids, or fuels
  • Self-supporting, 3-dimensionally reinforced
  • Can be converted into a wide range of shapes/configurations
  • Lightweight compared to conventional materials
  • Nontoxic – contains no adhesives, binders, coatings, or finishes
  • Bonds well with most resins and binders

Extended Temperature Performance

  • Cryogenic temperatures as low as -300°F and continuous use at temperatures as high as +550°F
  • Thermally and dimensionally stable for short periods at temperatures up to +800°F
  • Pyropel will not melt, drip, or support combustion
  • Extremely low heat release
  • Emits no smoke when subjected to ignition sources

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