Ketron® (PEEK)

Ketron® (PEEK) Polyetheretherketone

CHEMICALLY RESISTANT STRUCTURAL AND BEARING & WEAR MATERIAL FOR CONTINUOUS USE TO 480°F (250°C)

- Excellent chemical resistance - Inherently good wear and abrasion resistance
- Very low moisture absorption - Unaffected by continuous exposure to hot water or steam

Ketron® PEEK grades offer chemical and hydrolysis resistance similar to PPS, but can operate at higher temperatures. Ketron® PEEK 1000 offers steam and wear resistance, while carbon-reinforced Ketron® PEEK provides excellent wear capabilities. Ketron® PEEK HPV offers outstanding bearing performance. Ketron® PEEK can be used continuously to 480°F (250°C) and in hot water or steam without permanent loss in physical properties. For hostile environments, Ketron® PEEK is a high strength alternative to fluoropolymers. Ketron® PEEK carries a V-O flammability rating and exhibits very low smoke and toxic gas emission when exposed to flame.

Ketron® PEEK 1000 - This general purpose grade is unreinforced and offers the highest elongation and toughness of all PEEK grades - and Unfilled Grade is now FDA compliant. The newly available black Ketron® PEEK 1000 is ideal for instrument components where aesthetics are important, as well as for seal components where ductility and inertness are important.

Ketron® PEEK GF30 - (30% Glass- reinforced) The addition of glass fibers significantly reduces the expansion rate and increases the flexural modulus of PEEK. Ketron® PEEK GF30 is ideal for structural applications that require improved strength, stiffness or stability, especially at temperatures above 300°F (150°C).

Ketron® PEEK CA30 - (30% Carbon fiber-reinforced) The addition of carbon fibers enhances the compressive strength and stiffness of PEEK, and dramatically lowers its expansion rate. Ketron® PEEK CA30 offers designers optimum wear resistance and load carrying capability in a PEEK-based product. Ketron® PEEK CA30 more thermal conductivity than unreinforced PEEK - increasing heat dissipation from bearing surfaces improving bearing life and capability.

Ketron® PEEK HPV (BEARING GRADE) - Carbon fiber reinforced with graphite and PTFE lubricants, our newest grade of Ketron® PEEK offers the lowest coefficient of friction and the best machinability for all PEEK grades. An excellent combination of low friction, low wear, high LPV, low mating part wear and easy machining, make it ideal for aggressive service bearings.

Proven applications include:

  • Pump wear rings for centrifugal pumps
  • Electrical housings
  • Bushings, bearings, seals, back up rings for oil fields and aerospace

ENGINEERING NOTES

The stiffness of all PEEK grades drops off significantly and expansion rate increases above its glass transition temperature (Tg) of 300°F (150°C). A material like Torlon® PAI would be better suited for close tolerance bearings or seals operating at temperatures higher than 300°F (150°C).

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