Materials / Compare
Glass vs. SLA Resin Tough 2000
Compare Glass vs. SLA Resin Tough 2000 strength, stiffness, weight and thermal properties.
| Try it on a partA sample part 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 | 41MPasourcetypical mean surface tensile stress at fracture (MOR), 60 s load, weathered, 50% breakage probability | 40.4MPasourcetypical |
| Flexural strength | 41MPasourcemean MOR (same value as tensile) | 67MPasourcetypical |
| Elongation at break | not sourced | 79%sourcetypical |
| Young's modulus (stiffness) | 72GPasourcetypical40x stiffer | 1.8GPasourcetypical |
| Density | 2,500kg/m³sourcetypical | 1,090kg/m³sourcetypical2.29x lighter |
| Strength to weight | 16.4kN·m/kg | 37.1kN·m/kg2.26x higher |
| Stiffness to weight | 28.8MN·m/kg17.4x higher | 1.65MN·m/kg |
| Poisson's ratio | 0.22sourcetypical | not sourced |
| Shear modulus | 29.5GPa | not sourced |
| Bulk modulus | 42.9GPa | not sourced |
| Speed of sound | 5,367m/s | 1,285m/s |
| Thermal | ||
| Thermal conductivity | 0.937W/m·Ksourcetypical at 75 F | not sourced |
| Thermal expansion | 8.3µm/m·Ksourcetypical, 75-575 F | 134µm/m·Ksourcemean 0-150 °C |
| 100 mm part over a 50 °C swing | 41.5µm growth16.2x less | 671µm growth |
| Specific heat | 880J/kg·Ksourcetypical at 75 F | not sourced |
| Heats up and cools (diffusivity) | 0.426mm²/s | not sourced |
| Thermal shock resistance | 50.1W/m | not sourced |
| Glass transition | not sourced | 112°CsourceDMA |
| Max service temperature | 511°Csourcestrain point (ASTM C336) - stress-relaxation onset, not a rated service limit | 57°CsourceHDT 1.8 MPa |
| Values for | Annealed soda-lime-silica float glass, Pilkington North America Technical Bulletin ATS-129 (04/2025) | 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 Glass stronger than SLA Resin Tough 2000?
Glass is stronger: its tensile strength is 41 MPa against yield strength 40.4 MPa for SLA Resin Tough 2000 (1%).
Which is lighter, Glass or SLA Resin Tough 2000?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 2,500 kg/m³ for Glass.
Which is stiffer, Glass or SLA Resin Tough 2000?
Glass is stiffer: Young's modulus 72 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Glass deflects less under the same load.
Which is lighter for the same job, Glass or SLA Resin Tough 2000?
For the same stiffness or strength: Glass is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate; SLA Resin Tough 2000 is lighter for a strong rod or tie, strong beam, strong panel or plate.
| Part that must be | Glass | SLA Resin Tough 2000 |
|---|---|---|
| Stiff rod or tie (tension) | lighter | 17.4x heavier |
| Stiff beam (bending) | lighter | 2.76x heavier |
| Stiff panel or plate | lighter | 49% heavier |
| Strong rod or tie | 2.26x heavier | lighter |
| Strong beam | 2.27x heavier | lighter |
| Strong panel or plate | 2.28x 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 expands less with temperature?
Glass expands less: 8.3 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.