Materials / Compare
SLA Resin Elastic 50A vs. Rubber
Compare SLA Resin Elastic 50A vs. Rubber 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) | not given (tensile used) |
| Ultimate tensile strength | 3.4MPasourcetypical | 23MPasourcetypical6.76x stronger |
| Elongation at break | 160%sourcetypical | 830%sourcetypical5.19x more ductile |
| Young's modulus (stiffness) | not sourced | not sourced |
| Density | 1,010kg/m³sourcetypical | 960kg/m³sourcetypical (specific gravity) |
| Strength to weight | 3.37kN·m/kg | 24kN·m/kg7.12x higher |
| Stiffness to weight | not sourced | not sourced |
| Poisson's ratio | not sourced | 0.5sourcegovernment (NBS J. Res. 68A, 1964): computed by NBS for peroxide-cured gum NR vulcanizate, 25 °C, infinitesimal deformation0.49 in the solver: the linear element locks as the ratio nears 0.5 (nearly incompressible). |
| Shear modulus | not sourced | not sourced |
| Bulk modulus | not sourced | not sourced |
| Speed of sound | not sourced | not sourced |
| Thermal | ||
| Thermal conductivity | not sourced | 0.151W/m·Ksourcegovernment selected value (US Army Natick Laboratories TR 66-49-PR, 1966), soft vulcanized natural rubber, 25 °C |
| Thermal expansion | not sourced | not sourced |
| 100 mm part over a 50 °C swing | not sourced | not sourced |
| Specific heat | not sourced | 1,881J/kg·Ksourcegovernment (NBS J. Res. 68A, Table 7; values observed for unvulcanized NR by Bekkedahl and Matheson), 25 °C |
| Heats up and cools (diffusivity) | not sourced | 0.0836mm²/s |
| Thermal shock resistance | not sourced | not sourced |
| Glass transition | -34.5°CsourceDMA | not sourced |
| Max service temperature | not sourced | 70°Csourcecontinuous use operating range |
| Values for | 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. | Weir Minerals Linatex Premium rubber (95 % natural rubber), typical physical properties, spec sheet WMD0118/202305 |
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 SLA Resin Elastic 50A stronger than Rubber?
Rubber is stronger: its tensile strength is 23 MPa against 3.4 MPa for SLA Resin Elastic 50A (6.76x).
Which is lighter, SLA Resin Elastic 50A or Rubber?
Rubber is lighter: 960 kg/m³ against 1,010 kg/m³ for SLA Resin Elastic 50A.
Which is lighter for the same job, SLA Resin Elastic 50A or Rubber?
For the same stiffness or strength: Rubber is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | SLA Resin Elastic 50A | Rubber |
|---|---|---|
| Strong rod or tie | 7.12x heavier | lighter |
| Strong beam | 3.76x heavier | lighter |
| Strong panel or plate | 2.74x 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).
Which is more ductile, SLA Resin Elastic 50A or Rubber?
Rubber stretches further before it breaks: 830% elongation at break against 160% for SLA Resin Elastic 50A.