Materials / Compare
Plastic Polycarbonate vs. SLA Resin Standard
Compare Plastic Polycarbonate vs. SLA Resin Standard strength, stiffness, weight and thermal properties.
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Plastic PolycarbonateBulk polymer (molded or machined)
SLA Resin Standard3D printed (SLA resin)
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|---|---|---|
| Mechanical | ||
| Yield strength | 65MPasourcetypical, tensile yield | not given (tensile used) |
| Ultimate tensile strength | 65MPasourcetypical, stress at break | 60MPasourcetypical |
| Flexural strength | 97MPasourcetypical, flexural strength | 105MPasourcetypical |
| Elongation at break | 125%sourcetypical, strain at break | 8%sourcetypical |
| Young's modulus (stiffness) | 2.4GPasourcetypical | 2.75GPasourcetypical15% stiffer |
| Density | 1,200kg/m³sourcetypical | not sourced |
| Strength to weight | 54.2kN·m/kg | not sourced |
| 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 | not sourced |
| Max service temperature | 125°CsourceUL 746B RTI, tensile strength, 1.5 mm | 59°CsourceHDT 1.8 MPa |
| Values for | Covestro Makrolon 2405 general-purpose PC (MVR 19), Covestro technical datasheet version 2026-09-28, typical values | Formlabs Clear Resin V5 (FLGPCL05), TDS Rev. 01 March 20, 2024; printed on Form 4 at 100 µm, washed 5 min in >=99% IPA, post-cured 15 min at 60 °C in Form Cure. Orientation not stated. |
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 Standard is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Plastic Polycarbonate stronger than SLA Resin Standard?
Plastic Polycarbonate is stronger: its yield strength is 65 MPa against tensile strength 60 MPa for SLA Resin Standard (8%).
Which is stiffer, Plastic Polycarbonate or SLA Resin Standard?
SLA Resin Standard is stiffer: Young's modulus 2.75 GPa against 2.4 GPa for Plastic Polycarbonate, so the same part in SLA Resin Standard deflects less under the same load.
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