PETG vs. PLA
Both PETG and PLA are thermoplastics. There are 15 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is PETG and the bottom bar is PLA.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 2.2 | |
| 3.5 |
| Flexural Modulus, GPa | 2.1 | |
| 4.0 |
| Flexural Strength, MPa | 77 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 53 | |
| 50 |
Thermal Properties
| Glass Transition Temperature, °C | 81 | |
| 60 |
| Heat Deflection Temperature At 455 kPa (66 psi), °C | 73 | |
| 65 |
| Melting Onset (Solidus), °C | 140 | |
| 160 |
| Specific Heat Capacity, J/kg-K | 1200 | |
| 1800 |
| Thermal Conductivity, W/m-K | 0.29 | |
| 0.13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.3 | |
| 1.3 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.0 | |
| 1.6 |
| Stiffness to Weight: Bending, points | 34 | |
| 40 |
| Strength to Weight: Axial, points | 12 | |
| 11 |
| Strength to Weight: Bending, points | 25 | |
| 24 |
| Thermal Diffusivity, mm2/s | 0.19 | |
| 0.058 |