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DSM Somos® ProtoTherm™ 12120 Water-resistant resin for stereolithography, UV Postcure
Categories: Polymer; 3D Printing/Additive Manufacturing Polymer

Material Notes: Description: Somos® ProtoTherm 12120 stereolithography material is the perfect solution for applications requiring resistance to heat and humidity. Somos® ProtoTherm 12120 excels at producing highly detailed, extremely accurate parts. The material is dimensionally stable when exposed to heat and humidity making it a good candidate for high temperature fluid flow analysis, functional prototypes, and limited run, non-critical end-use parts such as wiring harnesses and support connectors in electronic devices.

Key Benefits:

  • Extremely Precise Accuracy for Small Details
  • Resistant to Heat up to 250°F (121°C)
  • Stable in High Humidity Environments
Ideal Applications:
  • High-Temperature Fluid Flow Analysis
  • Functional Prototypes Requiring Heat and Humidity Resistance
  • High-Detail Parts
  • Low Volume Connectors and Harnesses for Electronics

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. Innovative leaders in producing high quality Rapid Prototyping and Rapid Manufacturing solutions using all major 3D printing systems including Stereolithography technology. Free online quotes at www.axisproto.com

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Physical PropertiesOriginal ValueComments
Density 1.15 g/cc
@Temperature 25.0 °C
Water Absorption 0.37 %ASTM D570-98
Viscosity 550 cP
@Temperature 30.0 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 85ASTM D2240
Tensile Strength, Yield 70.2 MPaASTM D638M
Elongation at Break 4.0 %ASTM D638M
Modulus of Elasticity 3.52 GPaASTM D638M
Flexural Strength 109 MPaASTM D790M
Flexural Modulus 3320 MPaASTM D790M
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 3.81
@Frequency 1e+6 Hz
ASTM D150-98
 4.04
@Frequency 1000 Hz
ASTM D150-98
 4.14
@Frequency 60.0 Hz
ASTM D150-98
Dielectric Strength 15.5 kV/mmASTM D149-97a
 
Thermal PropertiesOriginal ValueComments
CTE, linear 58.1 µm/m-°C
@Temperature -40.0 - 0.000 °C
ASTM E831-00
 80.7 µm/m-°C
@Temperature 0.000 - 50.0 °C
ASTM E831-00
 111.4 µm/m-°C
@Temperature 50.0 - 100 °C
ASTM E831-00
 136.1 µm/m-°C
@Temperature 100 - 150 °C
ASTM E831-00
Deflection Temperature at 0.46 MPa (66 psi) 56.5 °CASTM D648-98c
Deflection Temperature at 1.8 MPa (264 psi) 51.9 °CASTM D648-98c
Glass Transition Temp, Tg 74.0 °CASTM E1545-00
 
Descriptive Properties
AppearanceRed
Dp (mm)6Slope of cure-depth vs. ln(E) curve
E10 (mJ/cm2)63Exposure that gives 0.254mm thickness
Ec (mJ/cm2)11.8Critical exposure

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