PES Film

PES Film delivers high-temperature resistance, excellent mechanical strength, and superior dimensional stability, making it a preferred material for precision insulation, filtration, and barrier applications. It resists hydrolysis and maintains its properties under prolonged exposure to steam and aggressive chemicals, making it valuable in aerospace, medical, and electronics sectors. Industries employ PES film for sterilizable medical packaging, dielectric layers in capacitors, and chemically resistant membranes. Specific uses include autoclave-stable medical wraps, precision dielectric sheets for aerospace avionics, and support layers in gas separation membranes. In research, PES film is applied in developing next-generation filtration systems, studying surface modification for enhanced fouling resistance, and evaluating long-term stability under cyclic thermal stress. Its performance profile ensures its continued relevance in advanced scientific and engineering applications.

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Tolerance

Properties

Reference & Citations

each

Tolerances

Foil

Thickness		±20%

Material Properties for Polymers

Chemical Resistance

Element	Value
Acids - concentrated	Good-Poor
Acids - dilute	Good
Alcohols	Good
Alkalis	Good
Aromatic hydrocarbons	Good
Greases and Oils	Good-Fair
Halogenated Hydrocarbons	Good
Halogens	Fair-Poor
Ketones	Good

Electrical Properties

Element	Value
Dielectric constant @1MHz	3.7
Dissipation factor @ 1MHz	0.003
Dielectric strength( kV mm⁻¹ )	16
Volume resistivity( Ohmcm )	10¹⁷

Physical Properties

Element	Value
Flammability	V-0 @ 0.4mm
Radiation resistance	Good-Fair
Refractive index	1.65
Resistance to Ultra-violet	Fair
Limiting oxygen index( % )	34-41
Water absorption - equilibrium( % )	2.2
Water absorption - over 24 hours( % )	0.4-1
Density( gcm⁻³ )	1.37

Mechanical Properties

Element	Value
Hardness - Rockwell	M88
Poisson's ratio	0.4
Elongation at break( % )	40-80
Tensile modulus( GPa )	2.4-2.6
Izod impact strength( J m⁻¹ )	85
Abrasive resistance - ASTM D1044( mg/1000 cycles )	6
Tensile strength( MPa )	70-95

Thermal Properties

Element	Value
Heat-deflection temperature - 0.45MPa( C )	260
Heat-deflection temperature - 1.8MPa( C )	203
Lower working temperature( C )	-110
Upper working temperature( C )	180-220
Thermal conductivity( W m⁻¹ K⁻¹ )	0.13-0.18@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	55