Description Extruded PPSU (Polyphenylensulfone) is an amorphous material with improved impact and hydrolysis resistance compared to PSU. Characteristics of PPSU include: High strength and rigidity Very high impact strength (also at low temperatures) Very good dimensional stability Very high chemical resistance High resistance to many types of radiation Very good sterilisation capability The very high notch impact strength remains after heat ageing Typical applications of PPSU include microwave oven parts, blow dryers, insulators, humidifiers and various uses in the food and medical industries. If you have a requirement for machined or finished PPSU components please ask the Plastock team for more information. Tech Specs Material PPSU Material type Extruded Shape Rod Colour Black Density (g/cm³) 1.31 Water absorption (%) 0.4 Yield stress (MPa) 80 Elongation at break (%) ?50 Notched impact strength (kJ/m²) 13 Ball indentation hardness (MPa) 141 Shore hardness (scale D) 86 Tensile modulus of elasticity (MPa) 2350 Thermal conductivity (W/(m*K) 0.35 CLTE (10⁻⁶K⁻¹) 56 Service temp long term min (°C) -50 Service temp long term max (°C) 170 Heat deflection temperature (°C) 214 Dielectric constant 3.4 Dielectric strength (kV/mm) 15 Volume resistivity (Ω*cm) ≥10¹³ Surface resistivity (Ω) ≥10¹³ Comparative tracking index 125 Flammability VO
