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DSM Somos® ProtoGen™ 18920 Liquid Photopolymer, UV Postcure at HOC +3
Categories: Polymer; 3D Printing/Additive Manufacturing Polymer

Material Notes: Product Description

DSM’s Somos® ProtoGen 18920 is a liquid photopolymer that produces accurate, ABS-like parts ideal for general purpose applications. Somos® ProtoGen resins are the first stereolithography resins to demonstrate different material properties based on machine exposure control. Based on Somos® Oxetane™ chemistry, Somos® ProtoGen 18920 offers superior chemical resistance, a wide processing latitude and excellent tolerance to a broad range of temperature and humidity, both during and after the build.

Applications

This high-temperature resistant, ABS-like photopolymer is used in solid imaging processes, such as stereolithography, to build three-dimensional parts. Somos® ProtoGen 18920 provides considerable processing latitude and is ideal for the medical, electronic, aerospace and automotive markets that demand accurate RTV patterns, durable concept models, highly accurate humidity & temperature resistant 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. North American leaders in producing fast Rapid Prototyping and Additive Manufacturing solutions utilizing all major 3D printing systems including SLA printing technology. Free 3D printing quotes at www.axisproto.com

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Physical PropertiesOriginal ValueComments
Density 1.16 g/cc
@Temperature 25.0 °C
Water Absorption 0.74 %ASTM D570-98
Viscosity 350 cP
@Temperature 30.0 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 86 - 87ASTM D2240
Tensile Strength, Yield 56.1 - 56.9 MPaASTM D638M
Elongation at Break 5.0 - 12 %ASTM D638M
Tensile Modulus 2577 - 2623 MPaASTM D638M
Flexural Strength 85.0 - 87.0 MPaASTM D790M
Flexural Modulus 2442 - 2518 MPaASTM D790M
Izod Impact, Notched 0.220 - 0.260 J/cmASTM D256A
 
Descriptive Properties
AppearanceGray
Dp (mm)4.2Slope of cure-depth vs. ln(E) curve
E10 (mJ/cm2)76Exposure that gives 0.254mm thickness
Ec (mJ/cm2)7Critical exposure

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PDSMT010 / 93530

Ensinger PEI

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