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Westlake Plastics

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Westlake Plastics Thermalux® PESU
Categories: Polymer; Thermoplastic; Polyethersulfone (PES)

Material Notes: Thermalux Polyethersulfone (PESU) Is an amber colored, semi-transparent, high performance engineering thermoplastic that combines good chemical resistance with a high heat deflection temperature (204°C / 399°F), making it a good fit for food service applications. This resin is also inherently flame retardant for use in electronic components and testing devices.

Applications include:

  • Electrical Connectors/Fittings
  • Burn in Test Sockets
  • Food Service Warming Trays
  • Safety face shields

Information provided by Westlake Plastics Co.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.24 g/ccASTM D792
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Yield 10200 psiASTM D638
Elongation at Break 50 - 60 %ASTM D638
Elongation at Yield 5.0 - 6.0 %ASTM D638
Tensile Modulus 360000 psiASTM D638
Flexural Strength 15400 psiASTM D790
Flexural Yield Strength 15400 psiASTM D790
Flexural Modulus 390000 psiASTM D790
Compressive Yield Strength 13900 psiASTM D695
Izod Impact, Notched 1.30 ft-lb/inASTM D256
Izod Impact, Unnotched NBASTM D256
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 5.00e+16 ohm-cmASTM D257
Dielectric Constant 3.06
@Frequency 1000 Hz
ASTM D150
Dielectric Strength 425 V/milASTM D149
Dissipation Factor 0.0010
@Frequency 1000 Hz
ASTM D150
 
Thermal PropertiesOriginal ValueComments
CTE, linear 31.0 µin/in-°FASTM D696
Thermal Conductivity 0.259 W/m-KASTM C177
Deflection Temperature at 0.46 MPa (66 psi) 358 °FASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 345 °FASTM D648
Flammability, UL94 V-0
@Thickness 4.47 mm
Oxygen Index 30 %ASTM D2863
 
Optical PropertiesOriginal ValueComments
Haze 5.0 %ASTM D1746
Transmission, Visible 75 %ASTM D1746
 
Descriptive Properties
ColorNatural (Transparent Amber)

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PWEST928 / 243172

Proto3000 – 3D Engineering Solutions

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