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Thermoset PI vs. NEMA Laminate

Both thermoset PI and NEMA laminate are thermoset plastics. There are 12 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is thermoset PI and the bottom bar is NEMA laminate.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 120 to 210
190 to 360
Flexural Modulus, GPa 3.1 to 4.8
6.4 to 18
Flexural Strength, MPa 60 to 100
87 to 340
Impact Strength: Notched Izod, J/m 21 to 43
20 to 430
Tensile Strength: Ultimate (UTS), MPa 37 to 81
55 to 260

Thermal Properties

Maximum Temperature: Mechanical, °C 260
120 to 200
Thermal Expansion, µm/m-K 38 to 54
9.0 to 20

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 20
12 to 21

Otherwise Unclassified Properties

Density, g/cm3 1.4 to 1.6
1.3 to 1.9
Water Absorption After 24 Hours, % 0.14 to 0.24
0.17 to 3.5

Common Calculations

Strength to Weight: Axial, points 6.5 to 16
8.3 to 40
Strength to Weight: Bending, points 16 to 30
17 to 50