PET vs. IR Rubber
PET belongs to the thermoplastics classification, while IR rubber belongs to the thermoset elastomers (rubber). There are 10 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is PET and the bottom bar is IR rubber.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 1.0 |
| Elongation at Break, % | 2.5 to 70 | |
| 600 |
| Glass Transition Temperature, °C | 70 | |
| -70 |
| Limiting Oxygen Index (LOI), % | 21 | |
| 19 |
| Maximum Temperature: Autoignition, °C | 410 | |
| 300 |
| Maximum Temperature: Decomposition, °C | 390 | |
| 300 |
| Specific Heat Capacity, J/kg-K | 1000 to 1150 | |
| 1550 |
| Strength to Weight: Axial, points | 12 to 27 | |
| 5.6 |
| Strength to Weight: Bending, points | 25 to 41 | |
| 17 |
| Tensile Strength: Ultimate (UTS), MPa | 60 to 140 | |
| 19 |