Materials / Compare
FDM Polycarbonate vs. SLA Resin Standard
Compare FDM Polycarbonate vs. SLA Resin Standard strength, stiffness, weight and thermal properties.
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|---|---|---|
| Mechanical | ||
| Yield strength | 53.3MPasourcetypical | not given (tensile used) |
| Ultimate tensile strength | 53.3MPasourcetypical, peak stress (= stress at yield) | 60MPasourcetypical |
| Flexural strength | 89.4MPasourcetypical | 105MPasourcetypical17% stronger in bending |
| Elongation at break | 9.2%sourcetypical15% more ductile | 8%sourcetypical |
| Young's modulus (stiffness) | 2.39GPasourcetypical | 2.75GPasourcetypical15% stiffer |
| Density | 1,180–1,200kg/m³sourcerange | not sourced |
| Strength to weight | 44.8kN·m/kg | not sourced |
| Stiffness to weight | 2.01MN·m/kg | not sourced |
| Poisson's ratio | 0.38sourcebase material: polycarbonate family typical (Covestro Part and Mold Design guide, Table 3-1) | not sourced |
| Shear modulus | 0.867GPa | not sourced |
| Bulk modulus | 3.33GPa | not sourced |
| Speed of sound | 1,418m/s | not sourced |
| Thermal | ||
| Thermal conductivity | 0.2W/m·Ksourcebase material: Covestro Makrolon 2405 injection-molding PC, typical, through-plane, 23 °C | not sourced |
| Thermal expansion | 65µm/m·Ksourcebase material: Covestro Makrolon 2405 injection-molding PC, typical, 23-55 °C, parallel | not sourced |
| 100 mm part over a 50 °C swing | 325µm growth | not sourced |
| Specific heat | not sourced | not sourced |
| Heats up and cools (diffusivity) | not sourced | not sourced |
| Thermal shock resistance | 42.5W/m | not sourced |
| Glass transition | 108°Csourcetypical | not sourced |
| Max service temperature | 105°CsourceHDT 0.455 MPa (printed specimens) | 59°CsourceHDT 1.8 MPa |
| Values for | Ultimaker PC, 3D-printed specimens, XY (flat); Ultimaker S5 Pro, engineering intent profile, 0.15 mm layer height, AA 0.4 print core, 100% infill, Cura 4.9, printed one-at-a-time, conditioned >=24 h at room temperature. TDS (file v5.00), April 20, 2022. | 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.
FDM Polycarbonate and SLA Resin Standard are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is FDM Polycarbonate stronger than SLA Resin Standard?
SLA Resin Standard is stronger: its tensile strength is 60 MPa against yield strength 53.3 MPa for FDM Polycarbonate (13%).
Which is stiffer, FDM Polycarbonate or SLA Resin Standard?
SLA Resin Standard is stiffer: Young's modulus 2.75 GPa against 2.39 GPa for FDM Polycarbonate, so the same part in SLA Resin Standard deflects less under the same load.
Which is more ductile, FDM Polycarbonate or SLA Resin Standard?
FDM Polycarbonate stretches further before it breaks: 9.2% elongation at break against 8% for SLA Resin Standard.
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