This amber-coloured, transparent material belongs to the group of amorphous high-performance plastics. Polysulfone has a good heat deflection temperature and heat ageing resistance (-100 °C to +160 °C). In addition, this material has a high hardness and strength, very good hydrolytic stability and high radiation resistance (permeable to microwaves up to 2.45 GHz). PSU also has high dimensional stability and resistance to β- and γ-, X-rays and infrared rays. However, PSU is not UV stable and notch sensitive.

Properties GEHR PSU®

Product range

  • High strength and rigidity
  • High impact strength (also at low temperatures)
  • Very good dimensional stability
  • High chemical resistance
  • High resistance to β-, γ-, x- and infrared radiation
  • High permeability of microwaves
  • Self-extinguishing
  • Good to sterilize
  • Mediocre resistance to stress crack
  • Not weather resistant


  • Parts of microwave ovens
  • Blow dryer
  • Humidifiers
  • Food industry
  • Pump wheels
  • Adapters
  • dosing stations, flanges and sleeves
  • Pump and sealing bodies
  • Valves
  • Insulators
  • Medical industry
Downloads GEHR PSU®

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