Materials / Compare
SLA Resin Tough 2000 vs. Zinc Zamak 3
Compare SLA Resin Tough 2000 vs. Zinc Zamak 3 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 | 40.4MPasourcetypical | 221MPasourcetypical5.47x stronger |
| Ultimate tensile strength | 40.4MPasourcetypical | 283MPasourcetypical7x stronger |
| Flexural strength | 67MPasourcetypical | not sourced |
| Elongation at break | 79%sourcetypical | 10%sourcetypical, in 2 in. |
| Young's modulus (stiffness) | 1.8GPasourcetypical | 85.5GPasourcetypical47.5x stiffer |
| Density | 1,090kg/m³sourcetypical6.06x lighter | 6,600kg/m³sourcetypical |
| Strength to weight | 37.1kN·m/kg11% higher | 33.5kN·m/kg |
| Stiffness to weight | 1.65MN·m/kg | 13MN·m/kg7.84x higher |
| Poisson's ratio | not sourced | 0.27sourcetypical, Zamak 3 hot-chamber die cast |
| Shear modulus | not sourced | 33.7GPa |
| Bulk modulus | not sourced | 62GPa |
| Speed of sound | 1,285m/s | 3,599m/s |
| Thermal | ||
| Thermal conductivity | not sourced | 113W/m·Ksourcetypical |
| Thermal expansion | 134µm/m·Ksourcemean 0-150 °C | 27.4µm/m·Ksourcetypical |
| 100 mm part over a 50 °C swing | 671µm growth | 137µm growth4.9x less |
| Specific heat | not sourced | 419J/kg·Ksourcetypical |
| Heats up and cools (diffusivity) | not sourced | 40.9mm²/s |
| Thermal shock resistance | not sourced | 7,782W/m |
| Melting point | not sourced | 381–387°Csourcemelting range |
| Glass transition | 112°CsourceDMA | not sourced |
| Max service temperature | 57°CsourceHDT 1.8 MPa | not sourced |
| Values for | 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. | Zamak 3 (ASTM B86 die cast), Nathan Trotter (zinc alloy producer) technical data sheet, typical values |
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 SLA Resin Tough 2000 stronger than Zinc Zamak 3?
Zinc Zamak 3 is stronger: its yield strength is 221 MPa against 40.4 MPa for SLA Resin Tough 2000 (5.47x).
Which is lighter, SLA Resin Tough 2000 or Zinc Zamak 3?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 6,600 kg/m³ for Zinc Zamak 3.
Which is stiffer, SLA Resin Tough 2000 or Zinc Zamak 3?
Zinc Zamak 3 is stiffer: Young's modulus 85.5 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Zinc Zamak 3 deflects less under the same load.
Which is lighter for the same job, SLA Resin Tough 2000 or Zinc Zamak 3?
For the same stiffness or strength: SLA Resin Tough 2000 is lighter for a stiff panel or plate, strong rod or tie, strong beam, strong panel or plate; Zinc Zamak 3 is lighter for a stiff rod or tie (tension), stiff beam (bending).
| Part that must be | SLA Resin Tough 2000 | Zinc Zamak 3 |
|---|---|---|
| Stiff rod or tie (tension) | 7.84x heavier | lighter |
| Stiff beam (bending) | 14% heavier | lighter |
| Stiff panel or plate | lighter | 1.67x heavier |
| Strong rod or tie | lighter | 11% heavier |
| Strong beam | lighter | 1.95x heavier |
| Strong panel or plate | lighter | 2.59x heavier |
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 expands less with temperature?
Zinc Zamak 3 expands less: 27.4 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.