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Epoxy vs. UP

Both epoxy and UP are thermoset plastics. There are 15 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is epoxy and the bottom bar is UP.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.4
17
Elongation at Break, % 4.5
1.0
Tensile Strength: Ultimate (UTS), MPa 67
30

Thermal Properties

Glass Transition Temperature, °C 120
60
Specific Heat Capacity, J/kg-K 1500
1200
Thermal Conductivity, W/m-K 0.2
0.7
Thermal Expansion, µm/m-K 100
3.0

Otherwise Unclassified Properties

Density, g/cm3 1.3
2.0
Limiting Oxygen Index (LOI), % 20
20

Common Calculations

Stiffness to Weight: Axial, points 1.0
4.7
Stiffness to Weight: Bending, points 34
43
Strength to Weight: Axial, points 14
4.2
Strength to Weight: Bending, points 28
11
Thermal Diffusivity, mm2/s 0.1
0.29
Thermal Shock Resistance, points 20
42