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PEEK Plastic Sheet and Rod

PolyEtherEtherKetone (PEEK) provided by Interstate Plastics is a stiff thermoplastic material with exceptional chemical and fatigue resistance and thermal stability, often used in applications where performance at extreme temperatures is necessary.


PEEK Overview

PEEK plastic is a temperature-resistant engineered machinable thermoplastic with excellent chemical resistance, fatigue resistance and thermal stability.

PEEK exhibits superior mechanical and electrical properties with a maximum continuous working temperature of 480F to 500F and excellent retention of mechanical properties up to 570F in a steam or high-pressure water environment.

Superior chemical resistance has allowed PEEK to work effectively as a metal/stainless steel replacement in harsh environments, and has proven to be a reliable replacement for other materials that cost up to 10 times more.

PEEK is inert to all common solvents and resists a wide range of organic and inorganic liquids. This is a versatile high performance plastic.


  • Extreme chemical resistance, good mechanical properties
  • Highly resistant to thermal degradation
  • Excellent strength, stiffness and dimensional stability
  • Lightweight compared to steel, aluminum and titanium
  • Low coefficient of friction
  • High wear resistance without lubrication
  • Low toxicity when exposed to flames
  • Glass filled grades are availabl
  • Outstanding wear resistance
PEEK Applications

Due to its robustness, PEEK is used to fabricate items used in demanding applications where extreme heat, pressure, and chemicals come into play.

  • Bearings and Bushings
  • Seals
  • Pump and valve components
  • Piston Parts
  • HPLC columns
  • Compressor plate valves
  • Cable insulation
  • Medical implants
  • Aerospace applications and parts
  • Chemical process applications
PEEK Physical Properties
Property
Unfilled
30% Glass
Density (lb/in^3)
0.047
0.056
Tensile Strength
16000 psi
15000 psi
Tensile Modulus
500 ksi
900 ksi
Flexural Strength
25000 psi
28000 psi
Flexural Modulus
600 ksi
1000 ksi
Elongation at Break
20%
3%
Water Absorption 24H
0.1-0.5%
0.1%
Izod Impact, Notched (ft-lb/in.)
1.0
1.4 - 1.84
Heat Deflection Temp.
306-320F
599F
Maximum Continuous Service Temp.
500F
482F
Melting Temp
644F
644F
Dynamic Coefficient of Friction
0.25
0.30

*Values listed are typical and are meant only as a guide to aid in design. Field testing should be performed to find the actual values for your application.

Product Title
Product Description
PTFE offers exceptional resistance to high temperatures, chemicals, corrosion and stress cracking.
PEEK Sheet - Natural
PTFE offers exceptional resistance to high temperatures, chemicals, corrosion and stress cracking.
PEEK Rod - Natural
PTFE has extreme heat and chemical resistance, with an extremely low friction coefficient.
PEEK Rod - Natural Glass 30%
PTFE has extreme heat and chemical resistance, with an extremely low friction coefficient.
Extreme Temperatures Material Sample Pack

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Contact Information
Phone: (888) 768-5759
330 Commerce Circle
Sacramento, CA 95815
emailsales@interstateplastics.com
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