PEK Film

PEK film is an advanced polymer film in Goodfellow's extensive range of specialty materials. With 21 variations available, its impressive properties include high strength, chemical resistance and excellent dielectric strength. Thanks to these and other attributes, PEK film has become indispensable across many industries, with applications ranging from electrical insulation in motors and transformers, to high-performance composites and protective barriers in chemical processing equipment. With unparalleled expertise and one of the widest selections on the market, Goodfellow ensures businesses and researchers use the ideal PEK film for their needs.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil/Film/Sheet

Thickness		±20%

Material Properties for Polymers

Physical Properties

Element	Value
Flammability	UL94 V-0
Radiation resistance	Good
Resistance to Ultra-violet	Good
Limiting oxygen index( % )	35
Water absorption - over 24 hours( % )	0.07
Density( gcm⁻³ )	1.3

Mechanical Properties

Element	Value
Elongation at break( % )	20
Tensile modulus( GPa )	3.7
Izod impact strength( J m⁻¹ )	5
Tensile strength( MPa )	115

Thermal Properties

Element	Value
Heat-deflection temperature - 1.8MPa( C )	163
Specific heat( J K⁻¹ kg⁻¹ )	2.2
Thermal conductivity( W m⁻¹ K⁻¹ )	23 - 45
Thermal conductivity( W m⁻¹ K⁻¹ )	0.29 -
Thermal conductivity( W m⁻¹ K⁻¹ )	23
Thermal conductivity( W m⁻¹ K⁻¹ )	0.29
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	45