Custom-Blended TruTech Materials

High-Performing, Application-Specific Polymers

The proprietary TruTech™ line of materials from Cook Compression includes custom PTFE, modified PTFE, UHMWPE, PEEK, PPS, polyimide and other high-temperature aromatic polymer materials.

Our engineers and materials scientists work together to recommend material formulations based on your application-specific requirements.

Special formulations provide high-performance sealing and lasting reliability for even the most demanding non-lubricated, dry-gas and high-temperature applications.

TruTech engineer polymer material compound

Custom Formulations for Optimum Performance

In-house precision blending capabilities enable Cook Compression to enhance specific material properties. Materials incorporate reinforcements, fillers and additives such as:

  • Glass fiber
  • Carbon
  • Carbon fiber
  • Graphite
  • Metal powders
  • FDA-approved minerals
  • Molybdenum disulphide (MoS2)

PTFE Materials

With its extremely low coefficient of friction, PTFE materials are the most common type of material used in reciprocating compressor piston, rider and packing rings.

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PEEK Materials

Generally stronger than PTFE materials, PEEK materials are the second most common type of material for piston, rider and packing rings. They may also be specified for valve components in high-temperature environments.

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PPS and Polyimide Materials

Specialty PPS materials have broad chemical resistance. Polyimides are suitable for extreme, high-temperature applications and are resistant to most chemicals.

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Our Capabilities

  • PTFE, UHMWPE, PEEK, PPS and polyimide shapes
  • Heavy cross-section molding
  • Unfilled (virgin) and filled PTFE rod and tube
  • Modified PTFE molding and welding
  • Billets up to 8 in. (203 mm) length
  • Solid rods up to 6 in. (152 mm) diameter
  • Tubes up to 42 in. (1066 mm) outer diameter, with 2 in. (50 mm) wall thickness

Related Case Studies

TruTech piston rings

TruTech Material Extends Sealing Component Life

By replacing carbon-filled PTFE with proprietary TruTech material, Cook Compression was able to extend repair cycles for rings, riders and packing from weeks to years, despite debris-filled and sometimes liquid-laden gas.
Utility air compressor

TruTech Upgrade Extends Piston Ring and Rider Life

A beverage producer wanted to increase the service life of piston and rider rings in a 2-stage, non-lubricated, utility air compressor with final delivery pressure of 100 psig. Cook engineers recommended rings produced with TruTech P2210.