IDES Prospector Already have an account? Login Here

IDES

Westlake PES

Polyethersulfone

Supplied by Westlake Plastics Company

The technical datasheet with complete property values for Westlake PES is available to members of the Prospector Plastics Database.
Register to view full datasheet.
Register to View Full Datasheet
Product Description
High resistance to heat and combustibility, low smoke emission, and transparency are the combination of properties possessed by stock shapes extruded from PES. These, coupled with light weight, good impact resistance, dimensional stability, and chemical resistance, make stock shapes extruded from PES resin useful in the electrical/electronics, aerospace/aircraft, automotive, and mass transit industries. PES stock shapes are also applicable for heat and fire safety, food service, and hospital and health care items.
Manufacturing Capabilities:
  • Rod: 0.1875 to 6 in diameter
  • Sheet: 0.035 to 4 in thick
  • Film: 0.001 to 0.029 in thick
  • Slab: 0.25 to 4 in thick
General  
Material Status 
  • Commercial: Active
Availability 
  • North America
Features 
  • Combustion Resistant
  • Food Contact Acceptable
  • Good Chemical Resistance
  • Good Dimensional Stability
  • Good Impact Resistance
  • High Heat Resistance
  • Low Smoke Emission
  • Machinable
Uses 
  • Aerospace Applications
  • Automotive Applications
  • Connectors
  • Electrical/Electronic Applications
  • Medical/Healthcare Applications
  • Non-specific Food Applications
Appearance 
  • Clear/Transparent
Forms 
  • Pellets
Processing Method 
  • Extrusion
Physical
Nominal Value
Unit
Test Method
Specific Gravity
 
 ASTM D792
Water Absorption (24 hr)
%
 ASTM D570
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
psi
 ASTM D638
Tensile Strength (Yield)
psi
 ASTM D638
Tensile Elongation
     ASTM D638
Yield
%
  
Break
%
  
Flexural Modulus
psi
 ASTM D790
Flexural Strength (Yield)
psi
 ASTM D790
Compressive Modulus
psi
 ASTM D695
Compressive Strength
psi
 ASTM D695
Impact
Nominal Value
Unit
Test Method
Notched Izod Impact (73°F)
ft·lb/in
 ASTM D256
Unnotched Izod Impact
 
 ASTM D256
Hardness
Nominal Value
Unit
Test Method
Rockwell Hardness (R-Scale)
 
 ASTM D785
Thermal
Nominal Value
Unit
Test Method
Deflection Temperature Under Load
     ASTM D648
66 psi, Unannealed
°F
  
264 psi, Unannealed
°F
  
CLTE - Flow
in/in/°F
 ASTM D696
Thermal Conductivity
Btu·in/hr/ft²/°F
 ASTM C177
Electrical
Nominal Value
Unit
Test Method
Volume Resistivity
ohm·cm
 ASTM D257
Dielectric Strength
V/mil
 ASTM D149
Dielectric Constant (1 kHz)
 
 ASTM D150
Dissipation Factor (1 kHz)
 
 ASTM D150
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL (0.0310 in)
 
 UL 94
Oxygen Index
%
 ASTM D2863
Optical
Nominal Value
Unit
Test Method
Transmittance
%
 ASTM D1003
Haze
%
 ASTM D1003
Additional Information
The values listed as Haze and Transmittance, ASTM D1003, were tested in accordance with ASTM D1746.
Rockwell Hardness, ASTM D785, R, M, L or D scale: 127
Tensile Elongation @ Brk, ASTM D638: 50 to 100%
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Westlake PES, Westlake , WestlakePES, PES, Polyethersulfone, PESU, Polysulfone, PSU, Westlake Plast
Features
Features may also be described by the following terms: Low Smoke Emission, Good Impact Resistance, 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: Medical Applications, Food Applications, 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.