PEI vs. Melamine Moulding Compound
PEI belongs to the thermoplastics classification, while melamine moulding compound belongs to the thermoset plastics. There are 5 material properties with values for both materials. Properties with values for just one material (25, in this case) are not shown.
For each property being compared, the top bar is PEI and the bottom bar is melamine moulding compound.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.3 to 1.5 | |
| 1.3 to 1.9 |
| Dielectric Strength (Breakdown Potential), kV/mm | 30 to 33 | |
| 4.4 to 11 |
| Flexural Strength, MPa | 140 to 210 | |
| 45 to 160 |
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 200 to 210 | |
| 170 to 230 |
| Water Absorption After 24 Hours, % | 0.17 to 0.25 | |
| 0.13 to 0.53 |