PS vs. AU

PS belongs to the thermoplastics classification, while AU belongs to the thermoset elastomers (rubber). There are 8 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is PS and the bottom bar is AU.

Polystyrene (PS)Polyurethane Rubber (AU, EU)

Metric UnitsUS Customary Units

Material Properties

Elongation at Break, %		1.8 to 40
Elongation at Break, %		580

Glass Transition Temperature, °C		100
Glass Transition Temperature, °C		-50

Maximum Temperature: Autoignition, °C		360 to 420
Maximum Temperature: Autoignition, °C		360

Maximum Temperature: Decomposition, °C		320 to 330
Maximum Temperature: Decomposition, °C		330

Maximum Temperature: Mechanical, °C		70
Maximum Temperature: Mechanical, °C		90

Specific Heat Capacity, J/kg-K		1250 to 1400
Specific Heat Capacity, J/kg-K		1760

Tensile Strength: Ultimate (UTS), MPa		32 to 44
Tensile Strength: Ultimate (UTS), MPa		39

Thermal Conductivity, W/m-K		0.14 to 0.22
Thermal Conductivity, W/m-K		0.19

PS vs. AU

Material Properties

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