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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Röhm PLEXIGLAS GS 0F00 cast acrylic sheet, typical values at 23 °C / 50 % RH (Röhm Technical Information Ref. No. 211-1)
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.
PLEXIGLAS GS and XT Technical Information (Ref. No. 211-1)Röhmarchived copyPlastic PMMA · Ultimate tensile strength: typical, 23 °CPlastic PMMA · Compressive strength: compressive yield stress, typicalPlastic PMMA · Flexural strength: typicalPlastic PMMA · Elongation at break: typicalPlastic PMMA · Young's modulus (stiffness): typical, short-termPlastic PMMA · Density: typicalPlastic PMMA · Poisson's ratio: typicalPlastic PMMA · Thermal conductivity: typicalPlastic PMMA · Thermal expansion: 0-50 °CPlastic PMMA · Specific heat: typicalPlastic PMMA · Max service temperature: max. permanent service temperature
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 Tough 2000 is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Mechanical
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.
Thermal
Which expands less with temperature?
Plastic PMMA expands less: 70 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.