PEK Film

PEK Film combines high heat resistance, dimensional stability, and chemical inertness, making it ideal for insulation, barrier, and structural applications in extreme environments. With a high glass transition temperature and low flammability, it performs reliably in aerospace, defense, and electronics sectors. Industries employ PEK film for capacitor dielectrics, high-temperature masking, and chemical-resistant membranes. Specific uses include dielectric layers in power electronics, precision masking in thermal spray processes, and chemical barriers in fuel cell assemblies. In research, PEK film enables studies of high-temperature polymer dielectrics, surface modifications for adhesion, and performance evaluation in harsh chemical and thermal cycling conditions. Its combination of advanced polymer chemistry and thin-film versatility ensures enduring value for cutting-edge industrial and scientific developments.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil

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