Polyetheretherketone (PEEK) Sealing
Polyetheretherketone (PEEK), an organic thermoplastic polymer, has excellent mechanical and chemical resistance properties that are maintained at high temperatures. PEEK seals can be heated, cooled, and heated again without degradation since they are composed of thermoplastic materials.
Contact our technical sales staff today to discuss your application's operating, hardware, and commercial conditions to develop the best-performing PEEK polymer sealing solution.
Duron® PEEK Polyetheretherketone | ||||
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| Material Name | Material Description | Operating Temperature Range (°F) | Wear Resistance (1=Poor & 5=Excellent) | Mating Metal Wear |
| DURON® 19 | Injection-Molded Polyetheretherketone (PEEK) is a high-modulus material with an excellent tolerance for high temperatures. Highly recommended for backup rings. Color is tan. | -200 to 480 | 4 | Medium |
| DURON® 50 | Polyetheretherketone (PEEK) a high-perfomance engineered thermoplastic material, is used where a high modulus polymer is required to resist high pressure or loads. Material is FDA approved. Color is grey. | -350 to 250 | 4 | Medium |
| DURON® 62 | Extruded Polyetheretherketone (PEEK) is typically used as anti-extrusion or backup-ring material because of its relatively low elongation and high stiffness. Material is FDA approved. Color is tan. | -350 to 250 | 4 | Medium |
| DURON® 150 | Bearing-Grade Polyetheretherketone (PEEK) is a premium material for bearing applications where traditional metal ball bearings cannot be used. Duron® 150 has a very high temperature tolerance. Color is black. | -350 to 250 | 5 | Medium |
PEEK Backup Rings
Backup rings are essential components in sealing systems, designed to prevent the extrusion of O-rings or other seals under high-pressure conditions. PEEK backup rings are particularly advantageous due to PEEK's high modulus and excellent temperature tolerance. Materials like DURON® 19 and DURON® 62 are highly recommended for backup rings, offering superior performance in demanding environments.
The use of PEEK in backup rings provides several benefits:
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High-Pressure Resistance: PEEK's inherent strength allows it to withstand elevated pressures without deformation.
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Temperature Stability: PEEK maintains its mechanical properties across a broad temperature range, ensuring reliable performance in both high and low-temperature applications.
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Chemical Compatibility: PEEK exhibits excellent resistance to a wide array of chemicals, making it suitable for use in harsh chemical environments.
PEEK O-Rings
O-rings made from PEEK are utilized in applications where traditional elastomeric O-rings may fail due to extreme conditions. PEEK O-rings offer:
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Enhanced Durability: The robust nature of PEEK ensures that O-rings maintain their integrity under mechanical stress.
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Thermal Endurance: PEEK O-rings can operate effectively at temperatures up to 480°F, catering to high-temperature sealing needs.
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Electrical Insulation: PEEK's excellent electrical insulating properties make these O-rings suitable for electronic applications.
Incorporating PEEK backup rings and O-rings into sealing systems enhances performance, reliability, and longevity, especially in challenging operational environments. In addition to these, we offer a full range of PEEK sealing solutions, including gaskets, rotary shaft seals, piston rings, and more! Whether you need custom-machined PEEK components or industry-standard sealing products, our team can provide high-performance solutions tailored to your application. For more information on our PEEK sealing solutions, please contact our technical sales team to discuss your specific requirements and request a quote today!
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