Materials / Compare
Plastic TPU vs. SLA Resin Tough 2000
Compare Plastic TPU 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 | 23.7MPasourcetypical, stress at break | 40.4MPasourcetypical |
| Flexural strength | 4.1MPasourcetypical | 67MPasourcetypical16.3x stronger in bending |
| Elongation at break | not sourced | 79%sourcetypical |
| Young's modulus (stiffness) | 0.067GPasourcetypical | 1.8GPasourcetypical26.9x stiffer |
| Density | 1,220kg/m³sourcetypical | 1,090kg/m³sourcetypical12% lighter |
| Strength to weight | 19.4kN·m/kg | 37.1kN·m/kg1.91x higher |
| Stiffness to weight | 0.0549MN·m/kg | 1.65MN·m/kg30.1x higher |
| Poisson's ratio | not sourced | not sourced |
| Shear modulus | not sourced | not sourced |
| Bulk modulus | not sourced | not sourced |
| Speed of sound | 234m/s | 1,285m/s |
| Thermal | ||
| Thermal conductivity | not sourced | not sourced |
| Thermal expansion | not sourced | 134µm/m·Ksourcemean 0-150 °C |
| 100 mm part over a 50 °C swing | not sourced | 671µm growth |
| Specific heat | not sourced | not sourced |
| Heats up and cools (diffusivity) | not sourced | not sourced |
| Thermal shock resistance | not sourced | not sourced |
| Melting point | 217°Csourcetypical | not sourced |
| Glass transition | not sourced | 112°CsourceDMA |
| Max service temperature | 50.3°CsourceHDT 0.455 MPa (printed specimens) | 57°CsourceHDT 1.8 MPa |
| Values for | Ultimaker TPU 95A, 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 29, 2022. | 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.
Plastic TPU and SLA Resin Tough 2000 are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is Plastic TPU stronger than SLA Resin Tough 2000?
SLA Resin Tough 2000 is stronger: its yield strength is 40.4 MPa against tensile strength 23.7 MPa for Plastic TPU (1.7x).
Which is lighter, Plastic TPU or SLA Resin Tough 2000?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 1,220 kg/m³ for Plastic TPU.
Which is stiffer, Plastic TPU or SLA Resin Tough 2000?
SLA Resin Tough 2000 is stiffer: Young's modulus 1.8 GPa against 0.067 GPa for Plastic TPU, so the same part in SLA Resin Tough 2000 deflects less under the same load.
Which is lighter for the same job, Plastic TPU or SLA Resin Tough 2000?
For the same stiffness or strength: SLA Resin Tough 2000 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Plastic TPU | SLA Resin Tough 2000 |
|---|---|---|
| Stiff rod or tie (tension) | 30.1x heavier | lighter |
| Stiff beam (bending) | 5.8x heavier | lighter |
| Stiff panel or plate | 3.35x heavier | lighter |
| Strong rod or tie | 1.91x heavier | lighter |
| Strong beam | 1.6x heavier | lighter |
| Strong panel or plate | 46% heavier | lighter |
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).