peek plastics

PEEK is high temperature resistant engineered thermoplastic with excellent chemical and fatigue resistance plus thermal stability. Peek exhibits superior mechanical and electrical properties. With a maximum continuous working temperature of 480° fahrenheit, peek has excellent retention of mechanical properties up to 570° fahrenheit in a steam or high-pressure water environment. Superior chemical resistance has allowed peek to work effectively as a metal replacement in harsh environments. Peek is inert to all common solvents and resists a wide range of organic and inorganic liquids. When extensice machining is required, a secondary annealing process should be considered.

Polyetheretherketon PEEK, a unique semi-crystalline, high temperature engineering thermoplastic, is an excellent material for a wide spectrum of applications where thermal,chemical, and combustion properties are critical to performance. Especially significant, in this regard, is PEEK's ability to retain flexural and tensile properties at very high temperatures -- in excess of 250°C (482°F). The addition of glass fiber and carbon fiber reinforcements enhances the mechanical and thermal properties of the basic PEEK material.

Excellent flexural, impact and tensile characteristics.

Very high continuous working temperature.
PEEK's excellent mechanical properties are retained even at temperatures in excess of 250°C (482°F). 

Exceptional chemical resistance.
PEEK is insoluble in all common solvents and, being crystalline, is extremely resistant to attack by a very wide range of organic and inorganic chemicals. A superior dielectric with low loss even at high temperatures and frequencies.

Very high heat distortion temperature.
For unreinforced PEEK, the HDT is 160°C (320°F). The addition of 30% glass or carbon fiber reinforcement results in a dramatic increase to 315°C (599°F). 

Good radiation resistance.
Absorbing more than 1000 M rads of irradation with no significant reduction in mechanical properties, PEEK exhibits exceptional resistance to high doses of gamma radiation.

Excellent hydrolysis resistance.
PEEK has an excellent resistance to hydrolysis in boiling water and superheated steam (sterilizationin/ autoclavabiiity) at temperatures in excess of 250°C (482°F). 

Low smoke and toxic gas emissions.
Levels of smoke and toxic gas released during combustion are among the lowest of any thermoplastic material.

Outstanding wear and abrasion resistance.
PEEK and reinforced PEEK have excellent wear and abrasion resistance characteristics with low coefficient of friction and high limiting PV properties. 


PEEK's exceptional property profile enables it to be utilized in many of the most critical areas in general industry, such as:

Automotive, marine, oil well, electronics, medical and aero-space


Rods: Length 10 feet: (1-1/4" to 6" diameter)
Plates: 24" x 48" (1-1/4" to 2" thickness)
12" x 48" (2-1/4" to 4" thickness)


Polyetheretherketone, Natural MIL-P-46183 Type I
Polyetheretherketone, Black -
Polyetheretherketone, 30% Glass reinforced MIL-P-46183 Type II, Class 3
Polyetheretherketone, 30% Carbon-fiber reinforced MIL-P-46183 Type III, Class 2


MECHANICAL Specific gravity (ASTM D 792) : 1.32
Tensile strength, Ultimate (ASTM D 638) : 14,000 p.s.i.
Elongation at break (ASTM D 638) : 50%
Tensile modulus (ASTM D 638) : 4.9x10 5 p.s.i.
Rockwell hardness (ASTM D 785) : R126-M99
Impact strength (73°F) (ASTM D 256) (notched) : 1.6 ft-lb/inch
Flexural strength (ASTM D 790) : 24,600 p.s.i.
Flexural modulus (ASTM D 790) : 5.9x 10 5 p.s.i.
Wear factor against steel 40 psi 50fpm : 200x10 10
Coefficient of friction 40psi 50fpm : 0.25 Dynamic
THERMAL Melting point : 644°F
Heat deflection at 66 psi (ASTM D 648) : - 
Heat deflection at 264 psi (ASTM D 648) : 306°F
Maximum serving temperature for short term : 600°F
Maximum serving temperature for long term : 480°F
Thermal conductivity (ASTM C 177) : 1.74 Btu-inch/hr-ft 2 - °F
Specific heat : 0.08 Btu/lb- °F
Coefficient of linear thermal expansion (ASTM D 696) : 2.6x10 5 @ 0-290°F
Coefficient of linear thermal expansion (ASTM D 696) : 6.0x10 5 @ 290-500°F
Applicable temperature range for thermal expansion : 0-500°F
ELECTRICAL Dielectric constant at 60Hz (ASTM D 150) (73°F, 50% RH) : 3.2
Dissipation factor at 60Hz (ASTM D 150) (73°F) : 0.003
Volume resistivity (ASTM D 257) : 4.90x10 16 ohm-cm
Dielectric strength (ASTM D 149) : 480 v/MIL
MISCELLANEOUS Water absorption - 24 hours (ASTM D 570) : 0.50%
Water absorption - saturation (ASTM D 570) : 0.50%
Density (ASTM D 792) : 0.0477 lb/inch 3
Flammability (UL 94) : V-0
Weathering Resistance : Yes


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