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DSM Somos® ProtoGen™ 18420 Epoxy Resin for Stereolithography, UV & Thermal Postcure
Categories: Polymer; 3D Printing/Additive Manufacturing Polymer; Thermoset; Epoxy

Material Notes: Description: DSM’s Somos® ProtoGen 18420 is a liquid, ABS-like, photopolymer that produces accurate 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 18420 offers superior chemical resistance, a wide processing latitude and excellent tolerance to a broad range of temperatures and humidity, both during and after the build.

Application: This high-temperature resistant, ABS-like photopolymer is used in solid imaging processes, like stereolithography, to build three-dimensional parts. Somos® ProtoGen 18420 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 and 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 short turnaround Rapid Prototyping and short run manufacturing solutions using all major 3D printing systems including SLA 3D 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 0.61 %ASTM D570-98
Viscosity 350 cP
@Temperature 30.0 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 86 - 87ASTM D2240
Tensile Strength, Yield 66.1 - 68.1 MPaASTM D638M
Elongation at Break 6.0 - 9.0 %ASTM D638M
Tensile Modulus 2880 - 2960 MPaASTM D638M
Flexural Strength 84.9 - 87.7 MPaASTM D790M
Flexural Modulus 2280 - 2340 MPaASTM D790M
Poissons Ratio 0.40 - 0.42ASTM D638M
Izod Impact, Notched 15.0 - 18.0 J/cmASTM D256A
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 2.9 - 3.0
@Frequency 1e+6 Hz
ASTM D150-98
 3.1 - 3.2
@Frequency 1000 Hz
ASTM D150-98
 3.1 - 3.3
@Frequency 60.0 Hz
ASTM D150-98
Dielectric Strength 13.8 - 14.1 kV/mmASTM D149-97a
 
Thermal PropertiesOriginal ValueComments
CTE, linear 67.3 - 68.2 µm/m-°C
@Temperature -40.0 - 0.000 °C
ASTM E831-00
 82.2 - 86.4 µm/m-°C
@Temperature 0.000 - 50.0 °C
ASTM E831-00
 110.4 - 116 µm/m-°C
@Temperature 50.0 - 100 °C
ASTM E831-00
 152.7 - 163.2 µm/m-°C
@Temperature 100 - 150 °C
ASTM E831-00
Deflection Temperature at 0.46 MPa (66 psi) 93.0 - 98.0 °CASTM D648-98c
Deflection Temperature at 1.8 MPa (264 psi) 74.0 - 78.0 °CASTM D648-98c
Glass Transition Temp, Tg 78.0 - 96.0 °CASTM E1545-00
 
Descriptive Properties
AppearanceWhite
Dp (mm)0.11Slope of cure-depth vs. ln(E) curve
E10 (mJ/cm2)67.6Exposure that gives 0.254mm thickness
Ec (mJ/cm2)6.73Critical exposure

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PDSMT008 / 93528

Ensinger PEI

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