Silicone Plastic vs. PAI
Silicone plastic belongs to the thermoset plastics classification, while PAI belongs to the thermoplastics. There are 14 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is silicone plastic and the bottom bar is PAI.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 9.0 | |
| 4.0 to 8.3 |
| Tensile Strength: Ultimate (UTS), MPa | 38 | |
| 100 to 180 |
Thermal Properties
| Glass Transition Temperature, °C | 200 | |
| 280 |
| Maximum Temperature: Decomposition, °C | 480 | |
| 490 |
| Specific Heat Capacity, J/kg-K | 850 | |
| 910 to 1000 |
| Thermal Conductivity, W/m-K | 0.35 | |
| 0.26 to 0.53 |
| Thermal Expansion, µm/m-K | 35 | |
| 15 to 34 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.9 | |
| 1.4 to 1.6 |
Common Calculations
| Stiffness to Weight: Axial, points | 2.6 | |
| 1.6 to 3.2 |
| Stiffness to Weight: Bending, points | 36 | |
| 38 to 47 |
| Strength to Weight: Axial, points | 5.5 | |
| 19 to 34 |
| Strength to Weight: Bending, points | 13 | |
| 33 to 49 |
| Thermal Diffusivity, mm2/s | 0.22 | |
| 0.16 to 0.41 |
| Thermal Shock Resistance, points | 8.5 | |
| 48 to 110 |