SLA Resin Standard

SLA Resin Standard (Formlabs Clear V5) strength, stiffness, density and thermal properties, with their source.

A bracket in SLA Resin Standard, smooth finish.

Mechanical
Yield strength	not given (tensile used)
Ultimate tensile strength	60MPa1
Flexural strength	105MPa1
Elongation at break	8%1
Young's modulus (stiffness)	2.75GPa1
Density	1,210kg/m³2
Strength to weight	49.6kN·m/kg
Stiffness to weight	2.27MN·m/kg
Poisson's ratio	not sourced
Shear modulus	not sourced
Bulk modulus	not sourced
Speed of sound	1,508m/s

Stiffness against densityHigher and further left: stiffer for its weight

Strength against densityHigher and further left: stronger for its weight

Thermal
Thermal conductivity	0.54W/m·K3
Thermal expansion	mean -30 to 140 °C114µm/m·K3
100 mm part over a 50 °C swing	571µm growth
Specific heat	1,800J/kg·K3
Heats up and cools (diffusivity)	0.248mm²/s
Thermal shock resistance	not sourced
Max service temperature	HDT 1.8 MPa59°C1

Thermal conductivity against densityHigher and further left: spreads more heat for its weight

Thermal expansion against thermal conductivityLower and further right: warps less when heated

Sources3 documents: Formlabs

Values for: 3D printed (SLA resin). 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.

1
Clear Resin V5 Technical Data Sheet (2024)Formlabsarchived copyUltimate tensile strength: typicalFlexural strength: typicalElongation at break: typicalYoung's modulus (stiffness): typicalMax service temperature: HDT 1.8 MPa
2
Clear Resin V5 Technical Data Sheet (web edition)FormlabsDensity: typical, post-cured (same for 5 min ambient and 15 min at 60 °C), ASTM D792
3
Thermal Properties of Selected Formlabs SLA ResinsFormlabsThermal conductivity: typical, post-cured, ASTM E1530Thermal expansion: mean -30 to 140 °C, post-cured (5 min ambient cure), TMA ASTM E831Specific heat: typical, 25 °C, post-cured (5 min ambient cure), DSC ASTM E1269

SLA Resin Standard is 3D printed: its properties depend on build direction and print settings; these are typical values.

Open in LessCAD

Thermal properties of SLA Resin Standard

Thermal conductivity of SLA Resin Standard

SLA Resin Standard has a thermal conductivity of 0.54 W/m·K (0.312 BTU/hr·ft·°F). Basis: typical, post-cured, ASTM E1530. Source: Formlabs, Thermal Properties of Selected Formlabs SLA Resins.

Specific heat of SLA Resin Standard

The specific heat capacity of SLA Resin Standard is 1,800 J/kg·K (0.43 BTU/lb·°F). Basis: typical, 25 °C, post-cured (5 min ambient cure), DSC ASTM E1269. Source: Formlabs, Thermal Properties of Selected Formlabs SLA Resins.

Coefficient of thermal expansion of SLA Resin Standard

SLA Resin Standard expands 114 µm/m·K (63.4 µin/in·°F): a 100 mm part grows 571 µm over a 50 °C rise. Basis: mean -30 to 140 °C, post-cured (5 min ambient cure), TMA ASTM E831. Source: Formlabs, Thermal Properties of Selected Formlabs SLA Resins.

Thermal diffusivity of SLA Resin Standard

Computed from the conductivity, density and specific heat (k / ρc): 0.248 mm²/s, how fast a temperature change spreads through it.

Maximum service temperature of SLA Resin Standard

The maximum service temperature of SLA Resin Standard is 59 °C (138 °F). Basis: HDT 1.8 MPa. Source: Formlabs, Clear Resin V5 Technical Data Sheet (2024)archived copy.