Polyphenylsulfone (PPSU)

Polyphenylsulfone – especially high-quality engineering plastic retaining very good mechanical, electrical, and thermal characteristics under high temperatures and low loads. Chemical name – PPSU.

Polyphenylsulfone – it is transparent amber colored plastic. It may also be produced of black color, though its characteristics stay the same irrespective of the color. In comparison to PSU, this plastic is chemically more impact and hydrolysis resistant, what allows assuring the higher number of sterilization cycles.


  • Flueless when in fire;
  • Resistant to gamma and x-rays;
  • Features mechanical strength, rigidity, and hardness at various temperatures;
  • Sufficiently impact resistant at temperature below zero;
  • Ensures stability of dimensions;
  • Good electro-insulation and dielectric characteristics;
  • Non-flammable;
  • Easy mechanical workability;
  • Formed by heat treatment;
  • It may be welded;
  • Good adhesive characteristics;
  • Resistant to multiple sterilizations;
  • Very high resistance to hot water and steam;
  • Chemically resistant to diluted acids and alkaline solutions, lubricants, fats, petrol, and alcohols;
  • Restricted chemical resistance to solvents, ketones, aromatic hydrocarbons, esters, and benzol;
  • Colour: natural (yellowish) and black.

Technical data:

  • Density - 1.29 g/cm3;
  • Operating temperature: from -50 oC to +180 oC;
  • Short-term operating temperature: +210 oC (PPS);
  • Reaction to fire class: V0 (UL 94).



Thickness (mm)

Width (mm)

Length (mm)

Diameter, Ø (mm)









1,000; 3,000


* Due to the fact that demand for this plastic is quite low in our country, it is not warehoused and delivered only on orders.

Scope of application:

Scope of application matches the one of PSU plastic. As PPSU is chemically more resistant than PSU, it is commonly used in industries of medicine, pharmacy equipment, electronics, water and waste water treatment. Handles of medical, dental and surgical equipment, endoscopic nozzles, medical sample rods, fluid transfer couplings (equipment), fittings, heads of medical equipment, lids, sterilisation trays, and laboratory equipment are produced. Various parts of equipment that is used in sterilisation procedures by using gamma or x-rays, ethylene oxide gas, hot air or superheated steam are produced.

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