Thermal conductivity against densityHigher and further left: spreads more heat for its weightThermal expansion against thermal conductivityLower and further right: warps less when heated
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Formlabs Clear Resin V5 (FLGPCL05), TDS Rev. 01 March 20, 2024; printed on Form 4 at 100 µm, washed 5 min in >=99% IPA, post-cured 15 min at 60 °C in Form Cure. Orientation not stated.
SLA Resin Tough 2000
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.
Clear Resin V5 Technical Data Sheet (2024)Formlabsarchived copySLA Resin Standard · Ultimate tensile strength: typicalSLA Resin Standard · Flexural strength: typicalSLA Resin Standard · Elongation at break: typicalSLA Resin Standard · Young's modulus (stiffness): typicalSLA Resin Standard · Max service temperature: HDT 1.8 MPa
3
Clear Resin V5 Technical Data Sheet (web edition)FormlabsSLA Resin Standard · Density: typical, post-cured (same for 5 min ambient and 15 min at 60 °C), ASTM D792
4
Thermal Properties of Selected Formlabs SLA ResinsFormlabsSLA Resin Standard · Thermal conductivity: typical, post-cured, ASTM E1530SLA Resin Standard · Thermal expansion: mean -30 to 140 °C, post-cured (5 min ambient cure), TMA ASTM E831SLA Resin Standard · Specific heat: typical, 25 °C, post-cured (5 min ambient cure), DSC ASTM E1269
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
SLA Resin Standard and SLA Resin Tough 2000 are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Mechanical
Is SLA Resin Standard stronger than SLA Resin Tough 2000?
SLA Resin Standard is stronger: its tensile strength is 60 MPa against yield strength 40.4 MPa for SLA Resin Tough 2000 (49%).
Which is lighter, SLA Resin Standard or SLA Resin Tough 2000?
SLA Resin Tough 2000 is lighter: 1,090 kg/m³ against 1,210 kg/m³ for SLA Resin Standard.
Which is stiffer, SLA Resin Standard or SLA Resin Tough 2000?
SLA Resin Standard is stiffer: Young's modulus 2.75 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in SLA Resin Standard deflects less under the same load.
Which is lighter for the same job, SLA Resin Standard or SLA Resin Tough 2000?
For the same stiffness or strength: SLA Resin Standard 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
SLA Resin Standard
SLA Resin Tough 2000
Stiff rod or tie (tension)
lighter
38% heavier
Stiff beam (bending)
lighter
11% heavier
Stiff panel or plate
lighter
4% heavier
Strong rod or tie
lighter
34% heavier
Strong beam
lighter
17% heavier
Strong panel or plate
lighter
10% 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, SLA Resin Standard or SLA Resin Tough 2000?
SLA Resin Tough 2000 stretches further before it breaks: 79% elongation at break against 8% for SLA Resin Standard.
Thermal
Which expands less with temperature?
SLA Resin Standard expands less: 114 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.