Polysulfone (PSU) is a high strength thermoplastic suitable for continuous use at temperatures up to 149 ° C. It is resistant to oxidation and hydrolysis, withstands prolonged exposure to high temperatures and repeated sterilization. A wide range of useful properties makes it possible to use it for the manufacture of high-quality mechanical engineering parts and serial products with high loads. It can be processed by almost all methods accepted for thermoplastics. Polysulfone (PSU) can be used successfully where other plastics such as polyamide, polycarbonate, polyoxymethylene and polyalkylene terephthalate do not meet the requirements. Due to its extraordinary versatility, it can replace thermosetting materials, metals and ceramics.

Granules with a maximum size of 6 mm.
PSU / Color: black


Unmixed, clean polysulfone scrap can be recycled. Scrap from the production of injection molding, extrusion or processing of semi-finished products can be used as regrinding and returned to processing. Unmixed polysulfone moldings can also be recycled into new parts after they have been processed and cleaned.

Technical data sheet

1) Density: 1,27 g/cm3

2) Melt flow rate: 6,8 g/10 min ( 290 oC / 5 kg ); 18,2 g/10 min ( 310 oC / 5 kg )

3) Tensile strength: 74 MPa

4) Deflection temperature under load 1,8 MPa : 176 oC

5) Water absorptioon: 0,28 %

6) Dielectric strength: 23-25 кV/mm

injection molding
  • drying temperature: 130 - 150 oC
  • drying time: 2 hr

injection cylinder temperature by zones (oC)

1 - 260 (+/-5)

2 - 270 (+/-5)

3 - 280 (+/-5)

4 - 290 (+/-5)

5 - 290 (+/-5)

6 - (nozzle) - 280 (+/-5)

mold temperature (oC): 70 - 120

injection pressure (MPa): 90 - 120

Compare with the virgin materials of these manufacturers:

Where is applied:

Polyethersulfone is used for high stress products and mass production. They (parts and workpieces made of strip sulfone) can be processed by almost all methods adopted for thermoplastics. Polysulfone can be used successfully for applications where other plastics such as polyamide, polycarbonate, polyoxymethylene and polyalkylene terephthalate do not meet the requirements. Due to its extraordinary versatility, polysulfone can replace thermosetting metals, metals and ceramics.

Polysulfone in the automotive industry

PSU (polysulfone), are high-performance material with a temperature profile that is unique among engineering thermoplastics. Apart from its outstanding thermal stability, as a construction material has a lot of other performance characteristics that have led to a series of applications in the automotive and transportation sectors.
The key features for its successful application are:
  • Short-term temperature resistance up to 220 °C
  • Long-term service temperatures up to 180 °C
  • Dimensional stability
  • Creep strength at high temperatures
  • Resistance to hot water and coolants
  • O il resistance, even at temperatures up to 170 °C
  • Fuel resistance
  • Resistance to fluorine

Polysulfone in the food and household sectors

PSU are already used in instrumentation, electrical engineering and electronics. In addition, there are many reasons for their use in the food and household industries as a substitute for glass, metal, ceramics and porcelain:
  • Temperature resistance up to 180 °C (short-term up to 220 °C)
  • Good mechanical properties, tough and impact-resistant H igh fracture resistance
  • Transparent or opaque
  • Exceptional chemical resistance
  • Resistance to superheated steam
  • Suitable for food contact

Electrical engineering and electronics

Coil formers, plug-and-socket connectors, printed circuit boards, circuit breaker components, parts for contactors and relays, viewing panels for signal lamps and switchboards, lamp bases and covers, heat shields, sensors, chip carriers, chip trays, and battery seals.

General apparatus engineering

Oil level indicators, discharge flow meters, pump components, automatic beverage dispenser components, milking machine parts, heat exchanger components, packing for absorption and distillation columns, seals, conveyor belt rollers, instruments, coverings, casings, surgical lighting fixtures, sterilization boxes, surgical secretion bottles, and filter membranes.

Heating and sanitary engineering

Heating circulation pump rotors, heating system thermostat components, hot-water meter components, interior components for sanitary fittings, and pipe fittings.

Environmental engineering

Membranes and filter housings, exhaust scrubbers.


Impact strength modifiers for composite materials (epoxy resins), and binders for high temperature-resistant coatings and nonstick coatings.


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