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PEI vs. PTMT

Both PEI and PTMT are thermoplastics. There are 8 material properties with values for both materials. Properties with values for just one material (23, in this case) are not shown.

For each property being compared, the top bar is PEI and the bottom bar is PTMT.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.3 to 1.5
1.3
Dielectric Strength (Breakdown Potential), kV/mm 30 to 33
17
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 200 to 210
50
Impact Strength: Notched Izod, J/m 55 to 110
53
Maximum Temperature: Mechanical, °C 170
130
Strength to Weight: Axial, points 24 to 30
12
Strength to Weight: Bending, points 40 to 44
25
Tensile Strength: Ultimate (UTS), MPa 110 to 160
56