Somos® Taurus™
Stereolithography

A robust material with an unparalleled combinationof thermal and mechanical performance.
Somos® Taurus brings the combinationof thermal and mechanical performancethat previously was not possible withstereolithography materials. Its robustnesscombined with a charcoal gray appearance
makes it ideal for the most demanding
functional prototyping and end-use
applications. Parts printed with this material
are easy to clean and finish. The higher heat
deflection temperature of Somos® Taurus
increases the number of applications for theData Sheetpart producer and user.

Key BenefitsIdeal Applications• Superior strength and durability• Customized end-use parts• Wide range of applications• Tough, functional prototypes• Excellent surface and large part accuracy• Under the hood automotive parts• Heat tolerance up to 90°C

• Functional testing for aerospace• T hermoplastic-like performance, look and feel

• Low volume connectors for electronics

LIQUID PROPERTIESOPTICAL PROPERTIES

Appearance

CharcoalEC

10.5 mJ/cm2[critical exposure]

Viscosity~350 cps @ 30°C

DP

4.2 mils[slope of cue-depth vs In (E) curve]

Density~1.13 g/cm3 @ 25°C

E10

111 mJ/cm2[exposure that gives 0.254 mm(.010 inch) thickness]

2

MECHANICAL PROPERTIESASTM Method

Property Description

D638-14UV POSTCURE

THERMAL POSTCURE

MetricImperial

MetricImperial

Tensile Modulus

2,310 MPa

335 ksi

2,206 MPa

320 ksiD638-14

Tensile Strength at Yield

46.9 MPa

6.8 ksi

49 MPa7.1 ksiD638-14

Elongation at Break

24%

17%

D638-14

Elongation at Yield

4%

5.7%

D638-14Poisson’s Ratio

0.45

0.44

D790-15e2

Flexural Strength73.8 MPa10.7 ksi

62.7 MPa9.1 ksi

D790-15e2

Flexural Modulus

2,054 MPa

298 ksi

1,724 MPa

250 ksi

D256A-10e1

Izod Impact (Notched)47.5 J/m

0.89 ft-lb/in

35.8 J/m

0.67 ft-lb/in

D2240-15

Hardness (Shore D)

D570-98

Water Absorption

83
0.75%

THERMAL/ELECTRICAL PROPERTIESASTM Method

Property Description

E831-14

0.7%

UV POSTCURE

THERMAL POSTCURE

MetricImperial

MetricImperial

C.T.E. -40 – 0°C (-40 – 32°F)

76.5 µm/m°C

42.5 µin/in°F

71.4 µm/m°C

39.7 μin/in°F

E831-14

C.T.E. 0 – 50°C (32 – 122°F)

105.3 µm/m°C

58.5 µin/in°F

103.4 µm/m°C

57.4 μin/in°F

E831-14

C.T.E. 50 – 100°C (122 – 212°F)

151.9 µm/m°C

84.4 µin/in°F

157.5 µm/m°C

87.5 μin/in°F

E831-14

C.T.E. 100 – 150°C (212 – 302°F)

171.4 µm/m°C

95.2 µin/in°F

173.4 µm/m°C

96.3 μin/in°F

D150-11

Dielectric Constant 60 Hz

4.6

4.8

D150-11

Dielectric Constant 1 KHz

4.2

4.4

D150-11

Dielectric Constant 1 MHz

3.7

3.5

D149-09

Dielectric StrengthD648-1617.7 kV/mm

451 V/mil

17.3 kV/mm

440 V/mil

HDT @ 0.46 MPa (66 psi)

62°C

144°F

91°C

196°F

D648-16

HDT @ 1.81 MPa (264 psi)

50°C

122°F

73°C

163°F

D3418-15

Glass Transition Temperature (DSC)

53°C

127°F

54°C

129°F

These values may vary and depend on individual machine processing and post-curing practices.

Stratasys Headquarters
7665 Commerce Way,
Eden Prairie, MN 55344+1 800 801 6491 (US Toll Free)+1 952 937-3000 (Intl)+1 952 937-0070 (Fax)

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Rehovot 76124, Israel+972 74 745 4000
+972 74 745 5000 (Fax)

Data Sheet

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ISO 9001:2015 Certified© 2023 Stratasys Ltd. All rights reserved. Stratasys, Stratasys signet, Somos and Taurus are trademarks or registered trademarksof Stratasys Ltd. and/or its subsidiaries or affiliates and may be registered in certain jurisdictions. All other trademarks belong to theirrespective owners. Product specifications subject to change without notice. MDS_SL_Somos Taurus_0123a