Materials / Compare
Plastic Polycarbonate vs. SLA Resin Elastic 50A
Compare Plastic Polycarbonate vs. SLA Resin Elastic 50A strength, stiffness, weight and thermal properties.
| Try it on a partA bracket to run stress or thermal on, free in your browser | Open in LessCAD | Open in LessCAD |
|---|---|---|
| Mechanical | ||
| Yield strength | 65MPasourcetypical, tensile yield | not given (tensile used) |
| Ultimate tensile strength | 65MPasourcetypical, stress at break | 3.4MPasourcetypical |
| Flexural strength | 97MPasourcetypical, flexural strength | not sourced |
| Elongation at break | 125%sourcetypical, strain at break | 160%sourcetypical |
| Young's modulus (stiffness) | 2.4GPasourcetypical | not sourced |
| Density | 1,200kg/m³sourcetypical | 1,010kg/m³sourcetypical19% lighter |
| Strength to weight | 54.2kN·m/kg16.1x higher | 3.37kN·m/kg |
| Stiffness to weight | 2MN·m/kg | not sourced |
| Poisson's ratio | 0.38sourcetypical, polycarbonate family (Covestro Part and Mold Design guide, Table 3-1) | not sourced |
| Shear modulus | 0.87GPa | not sourced |
| Bulk modulus | 3.33GPa | not sourced |
| Speed of sound | 1,414m/s | not sourced |
| Thermal | ||
| Thermal conductivity | 0.2W/m·Ksourcetypical, through-plane, 23 C | not sourced |
| Thermal expansion | 65µm/m·Ksourcetypical, 23-55 C, parallel and normal | not sourced |
| 100 mm part over a 50 °C swing | 325µm growth | not sourced |
| Specific heat | 1,172J/kg·Ksourcetypical (guide value), Bayer ASTM datasheet for Makrolon 2405, ASTM D 2766 | not sourced |
| Heats up and cools (diffusivity) | 0.142mm²/s | not sourced |
| Thermal shock resistance | 51.7W/m | not sourced |
| Glass transition | 144°Csourcetypical, DSC 10 C/min | -34.5°CsourceDMA |
| Max service temperature | 125°CsourceUL 746B RTI, tensile strength, 1.5 mm | not sourced |
| Values for | Covestro Makrolon 2405 general-purpose PC (MVR 19), Covestro technical datasheet version 2026-09-28, typical values | Formlabs Elastic 50A Resin V2 (FLELCL02), TDS Rev. 01 24.01.2024; parts printed on Form 3, 100 µm, Elastic 50A V2 settings and post-processing; tensile on Die C specimens cut from printed sheets after 3+ h at 23 °C. |
Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
SLA Resin Elastic 50A is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Plastic Polycarbonate stronger than SLA Resin Elastic 50A?
Plastic Polycarbonate is stronger: its yield strength is 65 MPa against tensile strength 3.4 MPa for SLA Resin Elastic 50A (19.1x).
Which is lighter, Plastic Polycarbonate or SLA Resin Elastic 50A?
SLA Resin Elastic 50A is lighter: 1,010 kg/m³ against 1,200 kg/m³ for Plastic Polycarbonate.
Which is lighter for the same job, Plastic Polycarbonate or SLA Resin Elastic 50A?
For the same stiffness or strength: Plastic Polycarbonate is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Plastic Polycarbonate | SLA Resin Elastic 50A |
|---|---|---|
| Strong rod or tie | lighter | 16.1x heavier |
| Strong beam | lighter | 6.02x heavier |
| Strong panel or plate | lighter | 3.68x heavier |
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).
Among 59 materials
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