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DSM Somos® BioClear
Categories: Polymer; 3D Printing/Additive Manufacturing Polymer

Material Notes: Somos® BioClear produces clear, strong, tough and water-resistant parts. Developed for medical applications and is ISO 10993-5, ISO 10993-10 and USP VI certified.

Applications: Somos® BioClear is designed for medical applications that are non-implant and have limited contact with the body, such as dental drill guides and device prototyping.

Property data for UV-postcured material.

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Physical PropertiesOriginal ValueComments
Density 1.12 g/cc
Water Absorption 0.35 %ASTM D570-98
Viscosity 260 cP
@Temperature 30.0 °C
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate 47.1 - 53.6 MPaASTM D638M
Elongation at Break 11 - 20 %ASTM D638M
Elongation at Yield 3.0 %ASTM D638M
Modulus of Elasticity 2.65 - 2.88 GPaASTM D368M
Flexural Strength 63.1 - 74.2 MPaASTM D790M
Flexural Modulus 2040 - 2370 MPaASTM D790M
Izod Impact, Notched 20.0 - 30.0 J/mASTM D256A
Graves Tear Strength 150 kN/mASTM D1004-09
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 3.4 - 3.5
@Frequency 1e+6 Hz
ASTM D150-98
 3.7 - 3.9
@Frequency 1000 Hz
ASTM D150-98
 3.9 - 4.1
@Frequency 60.0 Hz
ASTM D150-98
Dielectric Strength 15.4 - 16.3 kV/mmASTM D149-97A
 
Thermal PropertiesOriginal ValueComments
CTE, linear 60.0 - 67.0 µm/m-°C
@Temperature -40.0 - 0.000 °C
ASTM E831-05
 90.0 - 96.0 µm/m-°C
@Temperature 0.000 - 50.0 °C
ASTM E831-05
 170 - 189 µm/m-°C
@Temperature 50.0 - 100 °C
ASTM E831-05
 185 - 189 µm/m-°C
@Temperature 100 - 150 °C
ASTM E831-05
Deflection Temperature at 0.46 MPa (66 psi) 45.9 - 54.5 °CASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 49.0 - 49.7 °CASTM D648
Glass Transition Temp, Tg 39.0 - 46.0 °CASTM E1545-00
 
Optical PropertiesOriginal ValueComments
Refractive Index 1.512 - 1.515ASTM D542
 
Compliance PropertiesOriginal ValueComments
USP Class VI Yes
 
Descriptive Properties
AppearanceOptically clear
DP (mils)6.5Slope of cure-depth vs. ln (E) curve
E10 (mJ/cm2)54exposure that gives 0.254 mm (0.010 inch) thickness
Ec (mJ/cm2)11.5Critical Exposure

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