PPSU (Polyphenylensulfone) is an amorphous material with improved impact and hydrolysis resistance compared to PSU. Characteristics of PPSU include:

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.

Material	PPSU
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
Material type	Extruded