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UP vs. Thermoset PI

Both UP and thermoset PI are thermoset plastics. There are 11 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 UP and the bottom bar is thermoset PI.

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 1.0
2.0 to 5.9
Tensile Strength: Ultimate (UTS), MPa 30
37 to 81

Thermal Properties

Glass Transition Temperature, °C 60
360
Specific Heat Capacity, J/kg-K 1200
1130
Thermal Conductivity, W/m-K 0.7
0.29 to 1.7
Thermal Expansion, µm/m-K 3.0
38 to 54

Otherwise Unclassified Properties

Density, g/cm3 2.0
1.4 to 1.6
Limiting Oxygen Index (LOI), % 20
40

Common Calculations

Strength to Weight: Axial, points 4.2
6.5 to 16
Strength to Weight: Bending, points 11
16 to 30
Thermal Diffusivity, mm2/s 0.29
0.18 to 0.95