HDPE vs. Thermoset PI
HDPE belongs to the thermoplastics classification, while thermoset PI belongs to the thermoset plastics. There are 10 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 HDPE and the bottom bar is thermoset PI.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.0 to 1.3 | |
| 1.4 to 1.6 |
| Elongation at Break, % | 2.5 to 100 | |
| 2.0 to 5.9 |
| Flexural Modulus, GPa | 4.0 to 7.5 | |
| 3.1 to 4.8 |
| Impact Strength: Notched Izod, J/m | 50 to 260 | |
| 21 to 43 |
| Maximum Temperature: Mechanical, °C | 90 | |
| 260 |
| Specific Heat Capacity, J/kg-K | 1330 to 2400 | |
| 1130 |
| Strength to Weight: Axial, points | 6.9 to 17 | |
| 6.5 to 16 |
| Strength to Weight: Bending, points | 19 to 32 | |
| 16 to 30 |
| Tensile Strength: Ultimate (UTS), MPa | 24 to 80 | |
| 37 to 81 |
| Water Absorption At Saturation, % | 0.1 to 0.3 | |
| 3.6 |