Plastic ABS (bulk/injection) vs. SLA Resin Tough 2000

Compare Plastic ABS (bulk/injection) vs. SLA Resin Tough 2000 strength, stiffness, weight and thermal properties.

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Plastic ABS (bulk/injection)Bulk polymer (molded or machined)

SLA Resin Tough 20003D printed (SLA resin)

Mechanical
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Yield strength	45MPasourcetypical, tensile stress at yield 23 °C	40.4MPasourcetypical
Ultimate tensile strength	not sourced	40.4MPasourcetypical
Flexural strength	65MPasourcetypical, 23 °C	67MPasourcetypical
Elongation at break	10%sourcenominal strain at break, 23 °C	79%sourcetypical
Young's modulus (stiffness)	2.3GPasourcetypical28% stiffer	1.8GPasourcetypical
Density	1,040kg/m³sourcetypical	1,090kg/m³sourcetypical
Strength to weight	43.3kN·m/kg17% higher	37.1kN·m/kg
Stiffness to weight	2.21MN·m/kg34% higher	1.65MN·m/kg
Poisson's ratio	0.39sourcetypical, ABS family (Covestro Part and Mold Design guide, Table 3-1)	not sourced
Shear modulus	0.827GPa	not sourced
Bulk modulus	3.48GPa	not sourced
Speed of sound	1,487m/s	1,285m/s
Thermal
Thermal conductivity	0.17W/m·Ksourcetypical	not sourced
Thermal expansion	80–110µm/m·Ksourcerange	134µm/m·Ksourcemean 0-150 °C
100 mm part over a 50 °C swing	475µm growth41% less	671µm growth
Specific heat	not sourced	not sourced
Heats up and cools (diffusivity)	not sourced	not sourced
Thermal shock resistance	21.4W/m	not sourced
Glass transition	not sourced	112°CsourceDMA
Max service temperature	94°CsourceHDT 1.8 MPa (annealed 4 h/80 °C)	57°CsourceHDT 1.8 MPa
Values for	INEOS Styrolution Terluran GP-22 general-purpose injection-molding ABS, ISO typical values (TDS revision 08/01/2022)	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 Plastic ABS (bulk/injection) stronger than SLA Resin Tough 2000?

Plastic ABS (bulk/injection) is stronger: its yield strength is 45 MPa against 40.4 MPa for SLA Resin Tough 2000 (11%).

Which is lighter, Plastic ABS (bulk/injection) or SLA Resin Tough 2000?

Plastic ABS (bulk/injection) is lighter: 1,040 kg/m³ against 1,090 kg/m³ for SLA Resin Tough 2000.

Which is stiffer, Plastic ABS (bulk/injection) or SLA Resin Tough 2000?

Plastic ABS (bulk/injection) is stiffer: Young's modulus 2.3 GPa against 1.8 GPa for SLA Resin Tough 2000, so the same part in Plastic ABS (bulk/injection) deflects less under the same load.

Which is lighter for the same job, Plastic ABS (bulk/injection) or SLA Resin Tough 2000?

For the same stiffness or strength: Plastic ABS (bulk/injection) 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 ABS (bulk/injection)	SLA Resin Tough 2000
Stiff rod or tie (tension)	lighter	34% heavier
Stiff beam (bending)	lighter	18% heavier
Stiff panel or plate	lighter	14% heavier
Strong rod or tie	lighter	17% heavier
Strong beam	lighter	13% heavier
Strong panel or plate	lighter	11% 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 expands less with temperature?

Plastic ABS (bulk/injection) expands less: 95 µm/m·K against 134 µm/m·K for SLA Resin Tough 2000.

Among 59 materials

Stiffness against density

Strength against density