Table 3.

Mechanical properties of durable and tough resin [33,34].

Properties	Durable		Tough
	Green 1	Postcured 2	Green 1	Postcured 3
Tensile Properties
Ultimate Tensile Strength	13 MPa	28 MPa	26 MPa	33 MPa
Young’s Modulus	-	-	-	-
Tensile Modulus	0.24 GPa	1 GPa	0.94 GPa	1.5 GPa
Elongation at Failure	75%	55%	69%	51%
Flexural Properties
Flexural Modulus	0.04 MPa	0.66 GPa	0.44 GPa	1.4 GPa
Flexural Strength	-	-	15 MPa	39 MPa
Flexural Stress at 5% Strain	1.0 MPa	24 MPa	-	-
Impact Properties
Notched IZOD	127 J/m	114 J/m	72 J/m	67 J/m
Unnotched IZOD	-	-	902 J/m	1387 J/m
Thermal Properties
Heat Deflection Temp. @ 1.8 MPa	-	-	34 °C	45 °C
Heat Deflection Temp. @ 0.45 MPa	<30 °C	41 °C	42 °C	52 °C
Thermal Expansion	124 µm/m/°C	106 µm/m/°C	114 µm/m/°C	97 µm/m/°C

¹ Data was obtained from green parts, printed using a Form 2, 100 μm, clear settings, without additional treatments. ² Data was obtained from parts printed using a Form 2, 100 µm, and postcured with Form Cure for 120 min at 60 °C. ³ Data was obtained from parts printed using a Form 2, 100 µm, and postcured with Form Cure for 60 min at 70 °C.