DSM Somos® Taurus Stereolithography (SLA) Polymer, UV Postcure

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DSM Somos® Taurus Stereolithography (SLA) Polymer, UV Postcure
Categories:	Polymer; 3D Printing/Additive Manufacturing Polymer
Material Notes:	Superior strength and durability; Wide range of applications; Excellent surface and large part;accuracy; Heat tolerance up to 90°C; Thermoplastic-like performance, look and feel Uses include Customized end-use parts, Tough, functional prototypes, Under the hood automotive parts, Functional testing for aerospace, Low volume connectors for electronics. Information provided by DSM.
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Physical Properties	Original Value	Comments

Density	1.13 g/cc	Liquid
Water Absorption	0.75 %	ASTM D570-98
Viscosity	350 cP @Temperature 30.0 °C

Mechanical Properties	Original Value	Comments
Hardness, Shore D	83	ASTM D2240-15
Tensile Strength, Yield	46.9 MPa	ASTM D638-14
Elongation at Break	24 %	ASTM D638-14
Elongation at Yield	4.0 %	ASTM D638-14
Modulus of Elasticity	2.31 GPa	ASTM D638-14
Flexural Strength	73.8 MPa	ASTM D790-15e2
Flexural Modulus	2054 MPa	ASTM D790-15e2
Poissons Ratio	0.45	ASTM D638-14
Izod Impact, Notched	47.5 J/m	ASTM D256-10e1

Electrical Properties	Original Value	Comments
Dielectric Constant	3.7 @Frequency 1e+6 Hz	ASTM D150-11
	4.2 @Frequency 1000 Hz	ASTM D150-11
	4.6 @Frequency 60 Hz	ASTM D150-11
Dielectric Strength	17.7 kV/mm	ASTM D149-09

Thermal Properties	Original Value	Comments
CTE, linear	76.5 µm/m-°C @Temperature -40.0 - 0.000 °C	ASTM E831-14
	105.3 µm/m-°C @Temperature 0.000 - 50.0 °C	ASTM E831-14
	151.9 µm/m-°C @Temperature 50.0 - 100 °C	ASTM E831-14
	171.4 µm/m-°C @Temperature 100 - 150 °C	ASTM E831-14
Deflection Temperature at 0.46 MPa (66 psi)	62.0 °C	ASTM D648-16
Deflection Temperature at 1.8 MPa (264 psi)	50.0 °C	ASTM D648-16
Glass Transition Temp, Tg	53.0 °C	DSC; ASTM D3418-1511

Descriptive Properties
Appearance	Charcoal Color	Liquid
D_P (mils)	4.2	Slope of cure-depth vs. ln (E) curve
E₁₀ (mJ/cm²)	111	exposure that gives 0.254 mm (0.010 inch) thickness
E_c (mJ/cm²)	10.5	Critical Exposure

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PDSM9887k / 291050

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