Materials / Compare
Rubber vs. SLA Resin Tough 2000
Compare Rubber 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 | 23MPasourcetypical | 40.4MPasourcetypical1.76x stronger |
| Flexural strength | not sourced | 67MPasourcetypical |
| Elongation at break | 830%sourcetypical10.5x more ductile | 79%sourcetypical |
| Young's modulus (stiffness) | not sourced | 1.8GPasourcetypical |
| Density | 960kg/m³sourcetypical (specific gravity) | 1,090kg/m³sourcetypical |
| Strength to weight | 24kN·m/kg | 37.1kN·m/kg1.55x higher |
| Stiffness to weight | not sourced | 1.65MN·m/kg |
| Poisson's ratio | 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). | not sourced |
| Shear modulus | not sourced | not sourced |
| Bulk modulus | not sourced | not sourced |
| Speed of sound | not sourced | 1,285m/s |
| Thermal | ||
| Thermal conductivity | 0.151W/m·Ksourcegovernment selected value (US Army Natick Laboratories TR 66-49-PR, 1966), soft vulcanized natural rubber, 25 °C | 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 | 1,881J/kg·Ksourcegovernment (NBS J. Res. 68A, Table 7; values observed for unvulcanized NR by Bekkedahl and Matheson), 25 °C | not sourced |
| Heats up and cools (diffusivity) | 0.0836mm²/s | not sourced |
| Thermal shock resistance | not sourced | not sourced |
| Glass transition | not sourced | 112°CsourceDMA |
| Max service temperature | 70°Csourcecontinuous use operating range | 57°CsourceHDT 1.8 MPa |
| Values for | Weir Minerals Linatex Premium rubber (95 % natural rubber), typical physical properties, spec sheet WMD0118/202305 | 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.
SLA Resin Tough 2000 is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Is Rubber stronger than SLA Resin Tough 2000?
SLA Resin Tough 2000 is stronger: its yield strength is 40.4 MPa against tensile strength 23 MPa for Rubber (1.76x).
Which is lighter, Rubber or SLA Resin Tough 2000?
Rubber is lighter: 960 kg/m³ against 1,090 kg/m³ for SLA Resin Tough 2000.
Which is lighter for the same job, Rubber or SLA Resin Tough 2000?
For the same stiffness or strength: SLA Resin Tough 2000 is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Rubber | SLA Resin Tough 2000 |
|---|---|---|
| Strong rod or tie | 1.55x heavier | lighter |
| Strong beam | 28% heavier | lighter |
| Strong panel or plate | 17% 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, Rubber or SLA Resin Tough 2000?
Rubber stretches further before it breaks: 830% elongation at break against 79% for SLA Resin Tough 2000.