This unreinforced amorphous thermoplastic material has a lot
of features in common with PPSU and PEI. All three offer a combination of excellent mechanical, thermal and electrical properties.
PSU stock shapes are produced from non-UV-stabilised
polysulphone resin. It offers very good radiation stability, low ionic impurity levels and good chemical and hydrolysis resistance. Compared to PEI 1000, it has a lower property profile, often replacing polycarbonate whenever higher temperature resistance and improved chemical resistance are required. PSU 1000 is commonly used in food processing equipment (milk machines, pumps, valves, filtration plates, heat exchangers) and for medical components subject to repeated cleaning and sterilisation.