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ITW Insulcast® 140 FR Epoxy Potting/Encapsulation Compound
Categories: Polymer; Thermoset; Epoxy

Material Notes: Insulcast® solutions are compounds designed for potting and encapsulating. INSULCAST 140 FR is an epoxy casting system with high thermal conductivity. This system, when cured with INSULCURE 11B, also provides Class F operating properties.

Information provided by ITW Performance Polymers.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesOriginal ValueComments
Specific Gravity 0.950 g/ccUncured. Insulcure 11B
 2.60 g/ccUncured. Insulcast 140 FR
Viscosity 700 cPInsulcure 11B; ASTM D2393
 220000 cPInsulcast 140 FR; ASTM D2393
 50000 cP
@Temperature 60.0 °C
Uncured, mixed. Insulcast 140 FR; ASTM D2393
 50000 cP
@Temperature 60.0 °C
Uncured, mixed. Insulcure 11B; ASTM D2393
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 90 - 95ASTM D2393
Tensile Strength 8500 psiASTM D638
Elongation at Break <= 1.0 %ASTM D638
Flexural Strength 13500 psiASTM D790
Compressive Strength 16000 psiASTM D790
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 1.00e+15 ohm-cmASTM D257
Dielectric Constant 6.3
@Frequency 1000 Hz
ASTM D150
Dielectric Strength 420 V/milASTM D149
Dissipation Factor 0.015
@Frequency 1000 Hz
ASTM D150
 
Thermal PropertiesOriginal ValueComments
CTE, linear 26.0 µm/m-°C
Maximum Service Temperature, Air 155 °C
Minimum Service Temperature, Air -55.0 °C
 
Processing PropertiesOriginal ValueComments
Pot Life 150 min
@Temperature 25.0 °C
Insulcast 140 FR
 150 min
@Temperature 25.0 °C
Insulcure 11B
Shelf Life 12.0 MonthInsulcast 140 FR
 12.0 MonthInsulcure 11B
 
Descriptive Properties
ColorAmberUncured. Insulcure 11B
 BlackUncured. Insulcast 140 FR
Mix Ratio by weight100:3-4140 FR:Insulcast 140 FR
 100:3-4140 FR:Insulcure 11B

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