PETG vs. PMP
Both PETG and PMP are thermoplastics. There are 18 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is PETG and the bottom bar is PMP.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 2.2 | |
| 1.1 |
| Impact Strength: Notched Izod, J/m | 77 | |
| 130 |
| Tensile Strength: Ultimate (UTS), MPa | 53 | |
| 24 |
Thermal Properties
| Glass Transition Temperature, °C | 81 | |
| 30 |
| Melting Onset (Solidus), °C | 140 | |
| 230 |
| Specific Heat Capacity, J/kg-K | 1200 | |
| 1750 |
| Thermal Conductivity, W/m-K | 0.29 | |
| 0.17 |
| Thermal Expansion, µm/m-K | 68 | |
| 120 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 2.6 | |
| 2.1 |
| Dielectric Strength (Breakdown Potential), kV/mm | 16 | |
| 28 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 | |
| 0.83 |
| Refractive Index | 1.6 | |
| 1.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.0 | |
| 0.74 |
| Stiffness to Weight: Bending, points | 34 | |
| 41 |
| Strength to Weight: Axial, points | 12 | |
| 8.0 |
| Strength to Weight: Bending, points | 25 | |
| 22 |
| Thermal Diffusivity, mm2/s | 0.19 | |
| 0.12 |
| Thermal Shock Resistance, points | 25 | |
| 13 |