Unfilled Polyetheretherketone (PEEK)
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Poly(tetrafluoroethylene) (PTFE)
 

Thermo-Physical Properties

PROPERTY UNIT VALUE / RANGE
Melting Point °C327 - 346
Density g mL-1 1.80 - 2.41
Coefficient of Thermal Expansion x 10-5cm / (cm °C) 9.6 - 9.9
Heat Deflection Temperature, 0.5 MPa °C  
Heat Deflection Temperature, 1.8 MPa °C  
Thermal ConductivityW / mK 0.1 - 0.92
Shore Hardness,  D Scalen/a D55 - D70
    
 

Mechanical Properties at 23 °C

PROPERTY UNITVALUE / RANGE
Tensile Strength, Yield at 23 C MPa 12.4 - 13.7
Tensile Strength, Break at 23 C MPa 26 - 35
Elongation, Yield % 325
Elongation, Break % 250 - 580
Tensile Modulus at 23 CMPa 480 - 630
Flexural Strength, Yield MPa  
Flexural Modulus  MPa 490
Compressive Strength MPa 
Izod Notched J / m  
Izod Unnotched J / m 185
 

Electrical Properties

PROPERTY UNITVALUE / RANGE
Volume Resistivity
Ohm-cm 
 Dielectric Strength V/mm x 104 6 - 7
Dielectric Constant @ 1 MHz n/a 2.02 - 2.1
Dissipation Factor @ 1 MHz n/a, x 10-4 0.3 - 0.7
 

Other Properties

PROPERTY UNITVALUE / RANGE
Processing Temperature
°C 
Mold Shrinkage %  
Continuous Service Temperature °C 260
Water Absorption, 24 hr. Immersion% 0 - 0.02
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