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Udel® Polysulfone Specifications

904 West 6th Street, Shiner, Texas 77984 USA
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail:


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Udel® Polysulfone is an amorphous high performance thermoplastic offering excellent mechanical, electrical, and improved chemical resistance relative to polycarbonate. Polysulfone's properties remain relatively consistent over a broad temperature range of -150°F (-100°C) to +300°F (+149°C).

Udel® offers hydrolysis resistance for continuous use in hot water and steam at temperatures up to 300°F (149°C). It offers high chemical resistance to acidic and salt solutions, and good resistance to detergents, hot water, and steam. In addition, polysulfone has excellent radiation stability and offers low ionic impurity levels.

Udel® is commonly used for analytical instrumentation, surgical and medical devices, and semiconductor process equipment components.

Food-grade Udel® polysulfone is FDA, NSF, 3A-Dairy and USP Class VI compliant. It may also be ordered in custom colors.

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ASTM or UL test Property Udel®
D792 Density (lb/in³)
D570 Water Absorption, 24 hrs (%) 0.3
D638 Tensile Strength (psi) 10,200
D638 Tensile Modulus (psi) 360,000
D638 Tensile Elongation at Yield (%) 30
D790 Flexural Strength (psi) 15,000
D790 Flexural Modulus (psi) 400,000
D695 Compressive Strength (psi) 13,000
D695 Compressive Modulus (psi) 375,000
D785 Hardness, Rockwell M82 / R128
D256 IZOD Notched Impact (ft-lb/in) 1.3
D696 Coefficient of Linear Thermal Expansion
(x 10-5 in./in./°F)
D648 Heat Deflection Temp (°F / °C)
at 264 psi

340 / 171
D3418 Glass Transition Temp (°F / °C) 374 / 190
- Max Operating Temp (°F / °C) 300 / 149
C177 Thermal Conductivity
(x 10-4 cal/cm-sec-°C)

UL94 Flammability Rating HB
D149 Dielectric Strength (V/mil) short time, 1/8" thick 425
D150 Dielectric Constant at 1 MHz 3.14
D150 Dissipation Factor at 1 MHz 0.0008
D257 Volume Resistivity (ohm-cm)at 50% RH 5 x 1016

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.
UDEL is a registered trademark of Solvay Advanced Polymers.
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Boedeker Plastics, Inc.
904 West 6th Street, Shiner, Texas 77984 USA
USA TOLLFREE : 1-800-444-3485
Phone: 1-361-594-2941     Fax: 1-361-594-2349     E-Mail:

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