Materials / Compare
Plastic PMMA vs. SLA Resin Tough 2000
Compare Plastic PMMA 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 | 80MPasourcetypical, 23 °C | 40.4MPasourcetypical |
| Compressive strength | 110MPasourcecompressive yield stress, typical | not sourced |
| Flexural strength | 115MPasourcetypical1.72x stronger in bending | 67MPasourcetypical |
| Elongation at break | 5.5%sourcetypical | 79%sourcetypical14.4x more ductile |
| Young's modulus (stiffness) | 3.3GPasourcetypical, short-term | 1.8GPasourcetypical |
| Density | 1,190kg/m³sourcetypical | 1,090kg/m³sourcetypical |
| Strength to weight | 67.2kN·m/kg1.81x higher | 37.1kN·m/kg |
| Stiffness to weight | 2.77MN·m/kg1.68x higher | 1.65MN·m/kg |
| Poisson's ratio | 0.37sourcetypical | not sourced |
| Shear modulus | 1.2GPa | not sourced |
| Bulk modulus | 4.23GPa | not sourced |
| Speed of sound | 1,665m/s | 1,285m/s |
| Thermal | ||
| Thermal conductivity | 0.19W/m·Ksourcetypical | not sourced |
| Thermal expansion | 70µm/m·Ksource0-50 °C | 134µm/m·Ksourcemean 0-150 °C |
| 100 mm part over a 50 °C swing | 350µm growth1.92x less | 671µm growth |
| Specific heat | 1,470J/kg·Ksourcetypical | not sourced |
| Heats up and cools (diffusivity) | 0.109mm²/s | not sourced |
| Thermal shock resistance | 41.5W/m | not sourced |
| Glass transition | not sourced | 112°CsourceDMA |
| Max service temperature | 80°Csourcemax. permanent service temperature | 57°CsourceHDT 1.8 MPa |
| Values for | Röhm PLEXIGLAS GS 0F00 cast acrylic sheet, typical values at 23 °C / 50 % RH (Röhm Technical Information Ref. No. 211-1) | 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 Plastic PMMA stronger than SLA Resin Tough 2000?
Plastic PMMA is stronger: its tensile strength is 80 MPa against yield strength 40.4 MPa for SLA Resin Tough 2000 (1.98x).
Which is lighter, Plastic PMMA or SLA Resin Tough 2000?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 1,190 kg/m³ for Plastic PMMA.
Which is stiffer, Plastic PMMA or SLA Resin Tough 2000?
Plastic PMMA is stiffer: Young's modulus 3.3 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Plastic PMMA deflects less under the same load.
Which is lighter for the same job, Plastic PMMA or SLA Resin Tough 2000?
For the same stiffness or strength: Plastic PMMA 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 PMMA | SLA Resin Tough 2000 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 1.68x heavier |
| Stiff beam (bending) | lighter | 24% heavier |
| Stiff panel or plate | lighter | 12% heavier |
| Strong rod or tie | lighter | 1.81x heavier |
| Strong beam | lighter | 44% heavier |
| Strong panel or plate | lighter | 29% 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 is more ductile, Plastic PMMA or SLA Resin Tough 2000?
SLA Resin Tough 2000 stretches further before it breaks: 79% elongation at break against 5.5% for Plastic PMMA.
Which expands less with temperature?
Plastic PMMA expands less: 70 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.