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Material Information

Polysulfone is an amorphous high performance thermoplastic that offers excellent mechanical and electrical properties, as well as chemical resistance to acidic and salt solutions. It also has good resistance to detergents. These properties remain constant over a relatively broad temperature range (-150º F to 300º F). Polysulfone is a rigid material that can operate in an autoclave environment. Its excellent hydrolysis resistance allows it to be continuously used in hot water and steam. It also has excellent radiation stability and low ionic impurity levels. All together, Polysulfone’s properties make it ideal for use in pharmaceutical and medical applications, food service equipment, semiconductor processing, and electronic equipment. It has low flammability and smoke emission and is FDA, NSF, 3A-Dairy, and USP Class VI compliant in a food grade. It is available in a transparent amber color in the form of rod and sheet.


  • Pharmaceutical
  • Medical
  • Food service equipment
  • Semi-conductor water processing
  • Electronic equipment
  • Ultra pure water systems
  • Chip testing equipment


  • Autoclave resistant
  • Excellent hydrolytic stability
  • High strength and rigidity
  • Excellent electrical properties
  • Good chemical resistance
  • Superior creep resistance
  • FDA, NSF, 3A-Dairy, and USP Class VI compliant
  • High temperature performance
  • Flame retardant


PhysicalAstm Test MethodPolysulfone (PSU)
Density (lb/in^3)D7920.045
Specific GravityD7921.24
Water Absorption @ 24 hours (%)D5700.3
Tensile Strength (PSI)D63810,200
Tensile Modulus (PSI)D638360,000
Tensile Elongation at Yield (%)D63830
Flexural Strength (PSI)D79015,000
Flexural Modulus (PSI)D790400,000
Izod Impact (Notched), ft-lb/inD2561.3
D785M82 / R128
Coefficient of Thermal
Expansion, 10^-5/°F
Heat Deflection Temperature 264 psi, ºFD648340
Melting Point, °FD3418374
Continous Service Temp (Operating), °F300
Flammability RatingUL94HB
Dielectric Strength, Short Term,
(Volts/Mil) @ .125″ Thick
Volume Resistivity (ohm-cm) @ 50% RHD2575.0 X 10^16
Dielectric Constant at 1 kHzD1503.14
Dissipation Factor at 1 kHzD1500.0008

Disclosure: 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.


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