High Temperature Elastomers for Extreme Environments
When operating conditions exceed 240°C (464°F), conventional elastomers fall short. High temperature elastomers are specifically engineered to withstand extreme thermal environments while maintaining flexibility, chemical resistance, and sealing performance. From O-rings and custom molded parts to high-performance tubing, these materials play a critical role in industries where elevated heat is a constant factor. Learn more about thermal degradation here.
This page explores the features, applications, and benefits of ultra-high temperature elastomers, including advanced formulations of Silicone, EPDM, FFKM, PFA Teflon-Encapsulated O-rings, and PTFE Spring Energized Seals.
Check with one of Canyon’s helpful product engineers for an expert material and manufacturing recommendation.
Features of High Temperature Elastomers
- Thermal Stability Above 240°C: These materials maintain mechanical integrity and flexibility at sustained high temperatures, with some exceeding 300°C.
- Chemical Resistance: Depending on the material, they can be resistant to extremely aggressive chemicals, steam, and oxidizers often present in high-temperature processes.
- Low Compression Set: Even under extreme heat, these elastomers retain their shape and sealing force for extended service life.
- Versatile Formats: Available in precision O-rings, custom-molded shapes, and extruded tubing for use in static and dynamic sealing applications.
- Material Purity: Specialty blends are engineered for low outgassing and minimal trace contaminants, suitable for aerospace, semiconductor, and cleanroom use.
Common Applications
- Aerospace & Aviation: Jet engine components, bleed air systems, and high-altitude sealing applications.
- Semiconductor Manufacturing: Plasma etch systems and high-heat processing chambers where ultra-clean and heat-resistant seals are critical.
- Oil & Gas: Downhole tools, wellhead equipment, and high-pressure/high-temperature (HPHT) service conditions.
- Chemical Processing: Valves, pumps, and reactors that handle aggressive fluids at elevated temperatures.
- Pharmaceutical & Food Processing: Steam-in-place (SIP) and clean-in-place (CIP) environments using high-purity, heat-stable tubing and seals.
Please consult a Canyon Components Engineer about your specific application and we will use our decades of experience to formulate a solution that fits your need.
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High Temperature Materials Available
This table shows many of our standard materials and links out to our O-ring store. Get in touch with us if you need a custom gasket, custom molded part, or non-standard geometry!
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Pros and Cons of High Temperature Elastomers
At Canyon Components, we offer a wide range of high-performance elastomer solutions designed for extreme heat. Whether you need O-rings, custom molded parts, or extruded tubing, we can deliver precision-engineered components that perform reliably where others fail. Our high-temperature materials meet or exceed critical specifications across aerospace, oil & gas, semiconductor, and pharmaceutical applications.
Canyon Components strives to meet all customer service requests. Feel free to contact Canyon Components engineering and let our knowledgeable staff help you design the perfect part for your needs.
Pros of High Temperature Elastomers
- Exceptional Thermal Resistance: Perform reliably above 240°C, with certain materials pushing well beyond 300°C.
- Chemical Compatibility: Resist degradation in the presence of harsh acids, solvents, and steam.
- Extended Seal Life: Low compression set and excellent heat aging properties reduce replacement frequency.
- Versatility: Available in O-rings, tubing, and custom shapes for static and dynamic uses.
- Cleanroom-Ready: Many high-temp elastomers meet purity standards for use in pharmaceutical and semiconductor environments.
Cons of High Temperature Elastomers
- Higher Cost: Advanced formulations and material purity often come at a premium.
- Limited Flexibility at Room Temp (in Some Materials): Materials like PTFE are rigid and may require energizers for effective sealing.
- Processing Complexity: High-temp materials may require special tooling or extended curing cycles during manufacturing.
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