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Westlake PES Film

Polyethersulfone

Supplied by Westlake Plastics Company

The technical datasheet with complete property values for Westlake PES Film is available to members of the Prospector Plastics Database.
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Product Description
PES film possesses a combination of properties such as high resistance to heat and combustibility, low smoke emission and transparency. These coupled with light weight, high tear initiation and propagation strength, dimensional stability, chemical resistance and thermoformability make the film particularly useful in electrical, aerospace, automotive, and mass trasit industries.
Manufacturing Capabilities:
  • Thicknesses and Widths: 0.001 to 0.010 in up to 27 in wide, 0.011 to 0.029 in up to 26 in wide
  • Finishes: all thicknesses available polished one side, matte the other (P/M)
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Features 
  • Combustion Resistant
  • Good Chemical Resistance
  • Good Dimensional Stability
  • Good Tear Strength
  • High Heat Resistance
  • High Tensile Strength
  • Hydrolytically Stable
  • Laser Markable
  • Low Smoke Emission
Uses 
  • Adhesives
  • Aerospace Applications
  • Automotive Applications
  • Electrical/Electronic Applications
  • Film
  • Labels
  • Transportation Wire Insulation
Appearance 
  • Clear/Transparent
Forms 
  • Pellets
Processing Method 
  • Thermoforming
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Water Absorption (24 hr)
%
 ASTM D570
Films
Nominal Value
Unit
Test Method
Tensile Strength - MD (Yield)
psi
 ASTM D882
Tensile Elongation - MD (Break)
%
 ASTM D882
Flexural Modulus - MD
psi
 ASTM D790
Seal Initiation Temperature
°F
  
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load (264 psi, Unannealed)
°F
 ASTM D648
Max. Continuous Use Temperature
°F
 ASTM D794
Glass Transition Temperature (DSC)
°F
 DSC
Electrical
Nominal Value
Unit
Test Method
Surface Resistivity
ohms
 ASTM D257
Dielectric Strength (4.00E-6 in)
V/mil
 ASTM D149
Dielectric Constant (1 kHz)
 
 ASTM D150
Dissipation Factor (1 kHz)
 
 ASTM D150
Flammability
Nominal Value
Unit
Test Method
Oxygen Index
%
 ASTM D2863
Optical
Nominal Value
Unit
Test Method
Refractive Index
 
 ASTM D542
Transmittance
%
 ASTM D1003
Additional Information
Tear Strength - prop, ASTM D1004: 96 g/mil
Area Factor: 20000 in²/lb/mil
Thermoforming Temperature: 518 to 536°F
Drying Temperature: 302°F
Sealing Time: 8 sec
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Westlake PES Film, Westlake , WestlakePESFilm, PES Film, PESFilm, Polyethersulfone, PESU, Polysulfone, PSU, Westlake Plast, FilmPES
Features
Features may also be described by the following terms: High Tensile Strength, Good Tear Strength, Low Smoke Emission, High Heat Resistance, Good Dimensional Stability, Dimensionally Stable, Combustion Resistant, Resists Combustion, Good Chemical Resistance, Chemical Resistant.
Uses
Uses may also be described by the following terms: Transportation Wire Insulation, Electrical Applications, Electronic Applications, Electrical/Electronic Applications, Electrical Sector, Automotive Applications, Automotive Sector.
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.