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)
SLS PA12 Nylon
EOS PA 2200 (PA12) Material Data Sheet, process parameter 'Balance' at 120 µm layer thickness, X orientation, dry (conditioned values not given). Live MDS status 04.10.2026, last changed 10.09.2026; PDF via ?topdf=... link on the same page.
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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
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PA 2200 Balance Material Data SheetEOS GmbHSLS PA12 Nylon · Ultimate tensile strength: typicalSLS PA12 Nylon · Elongation at break: typicalSLS PA12 Nylon · Young's modulus (stiffness): typicalSLS PA12 Nylon · Density: typicalSLS PA12 Nylon · Melting point: typicalSLS PA12 Nylon · Max service temperature: HDT 1.8 MPa, X orientation
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.
SLS PA12 Nylon is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions
Mechanical
Is Plastic PMMA stronger than SLS PA12 Nylon?
Plastic PMMA is stronger: its tensile strength is 80 MPa against 48 MPa for SLS PA12 Nylon (1.67x).
Which is lighter, Plastic PMMA or SLS PA12 Nylon?
SLS PA12 Nylon is lighter: 930 kg/m³ against 1,190 kg/m³ for Plastic PMMA.
Which is stiffer, Plastic PMMA or SLS PA12 Nylon?
Plastic PMMA is stiffer: Young's modulus 3.3 GPa against 1.65 GPa for SLS PA12 Nylon, so the same part in Plastic PMMA deflects less under the same load.
Which is lighter for the same job, Plastic PMMA or SLS PA12 Nylon?
For the same stiffness or strength: Plastic PMMA is lighter for a stiff rod or tie (tension), stiff beam (bending), strong rod or tie, strong beam; SLS PA12 Nylon is lighter for a stiff panel or plate.
Part that must be
Plastic PMMA
SLS PA12 Nylon
Stiff rod or tie (tension)
lighter
1.56x heavier
Stiff beam (bending)
lighter
11% heavier
Stiff panel or plate
2% heavier
lighter
Strong rod or tie
lighter
30% heavier
Strong beam
lighter
10% heavier
Strong panel or plate
about equal
about equal
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 SLS PA12 Nylon?
SLS PA12 Nylon stretches further before it breaks: 18% elongation at break against 5.5% for Plastic PMMA.