Bambu Lab ASA, TDS V3.0, printed specimens X-Y; nozzle 260 °C, bed 80 °C, 200 mm/s, 100% infill; annealed and dried 80 °C for 12 h before testing.
Formlabs Elastic 50A Resin V2 (FLELCL02), TDS Rev. 01 24.01.2024; parts printed on Form 3, 100 µm, Elastic 50A V2 settings and post-processing; tensile on Die C specimens cut from printed sheets after 3+ h at 23 °C.
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.
FDM ASA and SLA Resin Elastic 50A are 3D printed: their properties depend on build direction and print settings; these are typical values.
Questions
Is FDM ASA stronger than SLA Resin Elastic 50A?
FDM ASA is stronger: its tensile strength is 37 MPa against 3.4 MPa for SLA Resin Elastic 50A (10.9x).
Which is lighter, FDM ASA or SLA Resin Elastic 50A?
SLA Resin Elastic 50A is lighter: 1,010 kg/m³ against 1,050 kg/m³ for FDM ASA.
Which is lighter for the same job, FDM ASA or SLA Resin Elastic 50A?
For the same stiffness or strength: FDM ASA is lighter for a strong rod or tie, strong beam, strong panel or plate.
Part that must be
FDM ASA
SLA Resin Elastic 50A
Strong rod or tie
lighter
10.5x heavier
Strong beam
lighter
4.72x heavier
Strong panel or plate
lighter
3.17x 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, FDM ASA or SLA Resin Elastic 50A?
SLA Resin Elastic 50A stretches further before it breaks: 160% elongation at break against 9.2% for FDM ASA.