Thermiculite: The Sealing Material for High-Temperature and Critical Industrial Applications

Thermiculite®: The Sealing Material for High-Temperature and Critical Industrial Applications

Thermiculite® is an advanced gasket material known for its outstanding performance in extreme temperature and pressure conditions. At Manufactures Cusell, we use it to produce high-performance gaskets for demanding sectors such as petrochemical, nuclear, and automotive industries.

What is Thermiculite®?

Thermiculite® is a mineral-based mica material enhanced through a patented process by Flexitallic. It is an asbestos-free sealing solution, designed as a superior alternative to graphite, especially in oxidizing and high-temperature environments.

Key advantages of Thermiculite®

  • Withstands temperatures up to 1000 °C without degradation.

  • Excellent chemical and oxidation resistance.

  • Performs well under high pressures and thermal cycling.

  • Asbestos-free and compliant with strict environmental standards.

  • High compressibility and recovery for effective sealing.

  • Long-term stability, even in steam or hot gas applications.

Common applications

  • Petrochemical industry: heat exchanger, flange, and valve gaskets.

  • Power generation and nuclear: sealing components in reactors and turbines.

  • Automotive and engines: exhaust and manifold gaskets.

  • Pharmaceutical and food sectors: ideal for steam cleaning and hygiene requirements.

Thermiculite® vs Graphite

Unlike graphite, Thermiculite® does not oxidize or break down under high temperatures in the presence of oxygen. This makes it a superior choice for sealing in oxidizing atmospheres and applications where durability is critical.


Need help selecting the right gasket for your next industrial project?
Contact us today at https://www.washersandgaskets.com to discuss your requirements and receive expert guidance. Manufactures Cusell proudly offers a wide range of industrial gaskets engineered to meet the highest standards of quality and environmental responsibility.

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