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PES vs. IR Rubber

PES belongs to the thermoplastics classification, while IR rubber belongs to the thermoset elastomers (rubber). There are 12 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is PES and the bottom bar is IR rubber.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 65
600
Tensile Strength: Ultimate (UTS), MPa 87
19

Thermal Properties

Glass Transition Temperature, °C 220
-70
Maximum Temperature: Autoignition, °C 500
300
Maximum Temperature: Decomposition, °C 540
300
Specific Heat Capacity, J/kg-K 1100
1550
Thermal Conductivity, W/m-K 0.18
0.14

Otherwise Unclassified Properties

Density, g/cm3 1.4
1.0
Limiting Oxygen Index (LOI), % 36
19

Common Calculations

Strength to Weight: Axial, points 18
5.6
Strength to Weight: Bending, points 32
17
Thermal Diffusivity, mm2/s 0.12
0.1