EPDM Rubber vs. PAR

EPDM rubber belongs to the thermoset elastomers (rubber) classification, while PAR belongs to the thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is EPDM rubber and the bottom bar is PAR.

Ethylene Propylene Diene Rubber (EPDM, EPT)Polyarylate (PAR)

Metric UnitsUS Customary Units

Material Properties

Density, g/cm³		1.0
Density, g/cm³		1.2

Elongation at Break, %		400
Elongation at Break, %		50

Glass Transition Temperature, °C		-60
Glass Transition Temperature, °C		190

Maximum Temperature: Decomposition, °C		290
Maximum Temperature: Decomposition, °C		470

Specific Heat Capacity, J/kg-K		2000
Specific Heat Capacity, J/kg-K		1200

Strength to Weight: Axial, points		3.6
Strength to Weight: Axial, points		16

Strength to Weight: Bending, points		12
Strength to Weight: Bending, points		31

Tensile Strength: Ultimate (UTS), MPa		13
Tensile Strength: Ultimate (UTS), MPa		67

Thermal Conductivity, W/m-K		0.2
Thermal Conductivity, W/m-K		0.18

Thermal Diffusivity, mm²/s		0.1
Thermal Diffusivity, mm²/s		0.13

EPDM Rubber vs. PAR

Material Properties

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