DSM Somos® 8120 Epoxy Photopolymer

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DSM Somos® 8120 Epoxy Photopolymer (discontinued **)
Categories:	Polymer; 3D Printing/Additive Manufacturing Polymer; Thermoset; Epoxy
Material Notes:	Description DSM Somos® 8120 is a high-speed liquid photopolymer that produces flexible, high-impact-strength, accurate parts using stereolithography machines. It has a wide processing latitude and excellent tolerance to a wide temperature and humidity range during and after build. This material is especially useful in functional applications where flexibility and impact-strength are critical requirements (e.g. plastic bottles, packaging, automobile panels, electronic enclosures, medical products, and snap-fit parts). Application Somos® 8120 Photopolymer is used in the solid imaging process to build three-dimensional parts. Information Provided by DSM Desotech Inc.
Vendors:	Proto3000 provides design tools, 3D printers, additive manufacturing processes, metrology technologies, high-performance materials, and part-finishing automation. Our ISO 9001:2015 additive manufacturing production facility offers 3D printing services, rapid prototyping services, and end-part production with HP MultiJet Fusion (MJF), FDM, SLA, SLS, Polyjet, DLP, metal binder jetting, BMD, and DMLS. Axis Proto Inc. Leaders in providing high quality Rapid Prototyping service and Additive Manufacturing solutions using all major Additive technologies including SLA 3D printing. Free online quotes at www.axisproto.com Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Density	1.11 g/cc @Temperature 25.0 °C	0.0401 lb/in³ @Temperature 77.0 °F
Viscosity	600 cP @Temperature 30.0 °C	600 cP @Temperature 86.0 °F

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	76	76	ASTM D2240
Tensile Strength, Yield	26.0 MPa	3770 psi	ASTM D638M
Elongation at Break	27 %	27 %	ASTM D638M
Modulus of Elasticity	0.276 - 0.703 GPa	40.0 - 102 ksi	ASTM D638M
Flexural Strength	26.0 MPa	3770 psi	ASTM D790M
Flexural Modulus	0.690 GPa	100 ksi	ASTM D790M
Izod Impact, Notched	0.590 J/cm	1.11 ft-lb/in	ASTM D256A
Tear Strength, Total	205 N	46.1 lb (f)	Graves; ASTM D1004

Thermal Properties	Metric	English	Comments
Deflection Temperature at 0.46 MPa (66 psi)	54.0 °C	129 °F	ASTM D648

Descriptive Properties
Appearance	Transparent Amber
D_p (mm)	0.157		Slope of cure-depth vs. ln(E) curve
E₁₀ (mJ/cm²)	35		Exposure that gives 0.254mm thickness
E₅ (mJ/cm²)	15		Exposure that gives 0.127mm thickness
E_c (mJ/cm²)	6.75		Critical exposure

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PDSMT031 / 93551

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