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PTMT vs. Thermoset PI

PTMT belongs to the thermoplastics classification, while thermoset PI belongs to the thermoset plastics. There are 8 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 PTMT and the bottom bar is thermoset PI.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.3
1.4 to 1.6
Dielectric Strength (Breakdown Potential), kV/mm 17
20
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 50
370
Impact Strength: Notched Izod, J/m 53
21 to 43
Maximum Temperature: Mechanical, °C 130
260
Strength to Weight: Axial, points 12
6.5 to 16
Strength to Weight: Bending, points 25
16 to 30
Tensile Strength: Ultimate (UTS), MPa 56
37 to 81