Materials / Compare
FDM ASA vs. SLA Resin Tough 2000
Compare FDM ASA vs. SLA Resin Tough 2000 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 | not given (tensile used) | 40.4MPasourcetypical |
| Ultimate tensile strength | 37MPasourcetypical | 40.4MPasourcetypical |
| Flexural strength | 65MPasourcetypical | 67MPasourcetypical |
| Elongation at break | 9.2%sourcetypical | 79%sourcetypical8.59x more ductile |
| Young's modulus (stiffness) | 2.45GPasourcetypical36% stiffer | 1.8GPasourcetypical |
| Density | 1,050kg/m³sourcetypical | 1,090kg/m³sourcetypical |
| Strength to weight | 35.2kN·m/kg | 37.1kN·m/kg5% higher |
| Stiffness to weight | 2.33MN·m/kg41% higher | 1.65MN·m/kg |
| Poisson's ratio | not sourced | not sourced |
| Shear modulus | not sourced | not sourced |
| Bulk modulus | not sourced | not sourced |
| Speed of sound | 1,528m/s | 1,285m/s |
| Thermal | ||
| Thermal conductivity | 0.17W/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, typical | not sourced |
| Thermal expansion | 80–110µm/m·Ksourcebase material: INEOS Styrolution Luran S 777K injection-molding ASA, range | 134µm/m·Ksourcemean 0-150 °C |
| 100 mm part over a 50 °C swing | 475µm growth41% less | 671µm growth |
| Specific heat | not sourced | not sourced |
| Heats up and cools (diffusivity) | not sourced | not sourced |
| Thermal shock resistance | not sourced | not sourced |
| Glass transition | not sourced | 112°CsourceDMA |
| Max service temperature | 92°CsourceHDT 1.8 MPa1.61x hotter | 57°CsourceHDT 1.8 MPa |
| Values for | Bambu Lab ASA, TDS V3.0, printed specimens X-Y; nozzle 260 °C, bed 80 °C, 200 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing. | Formlabs Tough 2000 Resin V2 (FLTO2002), TDS Rev. 01 10/06/2025; printed on Form 4 at 100 µm, washed in Form Wash V2 10+5 min in >=99% IPA, post-cured 70 °C for 12 min in Form Cure V2. 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 ASA and SLA Resin Tough 2000 are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is FDM ASA stronger than SLA Resin Tough 2000?
SLA Resin Tough 2000 is stronger: its yield strength is 40.4 MPa against tensile strength 37 MPa for FDM ASA (9%).
Which is lighter, FDM ASA or SLA Resin Tough 2000?
FDM ASA is lighter: 1,050 kg/m³ against 1,090 kg/m³ for SLA Resin Tough 2000.
Which is stiffer, FDM ASA or SLA Resin Tough 2000?
FDM ASA is stiffer: Young's modulus 2.45 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in FDM ASA deflects less under the same load.
Which is lighter for the same job, FDM ASA or SLA Resin Tough 2000?
For the same stiffness or strength: FDM ASA is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; SLA Resin Tough 2000 is lighter for a strong rod or tie, strong beam.
| Part that must be | FDM ASA | SLA Resin Tough 2000 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 41% heavier |
| Stiff beam (bending) | lighter | 21% heavier |
| Stiff panel or plate | lighter | 15% heavier |
| Strong rod or tie | 5% heavier | lighter |
| Strong beam | 2% heavier | lighter |
| Strong panel or plate | about equal | about equal |
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).
Which is more ductile, FDM ASA or SLA Resin Tough 2000?
SLA Resin Tough 2000 stretches further before it breaks: 79% elongation at break against 9.2% for FDM ASA.
Which handles higher temperatures, FDM ASA or SLA Resin Tough 2000?
FDM ASA does: 92 °C against 57 °C for SLA Resin Tough 2000, both HDT 1.8 MPa.
Which expands less with temperature?
FDM ASA expands less: 95 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.