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Tra-Con Tra-Cast 3103 General Purpose Epoxy Casting Compound

Category Polymer , Adhesive , Thermoset , Epoxy
Manufacturer Tra-Con, Inc.
Trade Name Tra-Cast
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Tra-Con Tra-Cast 3103 General Purpose Epoxy Casting Compound.pdf
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Material Notes:
TRA-CAST 3103 is a low viscosity two-part formulation recommended for general purpose electrical potting and encapsulating application where the combination of good mechanical thermal and electrical properties are required. It is an all liquid system with excellent flow and wetting characteristics, exhibits superior adhesion to glass, ceramics most metals, many plastics (includes potting shells) and other electronic materials, contains no solvents, and is easily mixed, handled and cured with minimum shrinkage at room temperatures. The fully cured TRA-CAST 3103 is an electrical insulator with good impact and thermal shock resistance. It is further resistant to water, weather, gases, galvanic action, petroleum fuels and solvents, alcohol, salts and many acids and alkalis. Information provided by Tra-Con Inc.
Physical Properties Metric English Comments
Specific Gravity 1.58 g/cc
1.58 g/cc
Mixed
Solids Content 100 %
100 %
Reactive Solids Content
Viscosity 4000 cP

@Temperature 25.0 °C
4000 cP

@Temperature 77.0 °F
After mixing
Mechanical Properties Metric English Comments
Hardness, Shore D 85
85
Adhesive Bond Strength 17.9 MPa
2600 psi
Lap shear, alum to alum, 2 hrs @ 65°C
Thermal Properties Metric English Comments
CTE, linear 35.0 µm/m-°C

@Temperature 20.0 °C
19.4 µin/in-°F

@Temperature 68.0 °F
Thermal Conductivity 0.500 W/m-K
3.47 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 145 °C
293 °F
Minimum Service Temperature, Air -60.0 °C
-76.0 °F
Glass Transition Temp, Tg 80.0 °C
176 °F
Ultimate Tg
Electrical Properties Metric English Comments
Volume Resistivity 4.00e+16 ohm-cm
4.00e+16 ohm-cm
4.00e+14 ohm-cm

@Temperature 100 °C
4.00e+14 ohm-cm

@Temperature 212 °F
Dielectric Constant 3.8

@Frequency 100000 Hz
3.8

@Frequency 100000 Hz
4.1

@Frequency 1000 Hz
4.1

@Frequency 1000 Hz
Dielectric Strength 20.1 kV/mm
510 kV/in
Dissipation Factor 0.010

@Frequency 1000 Hz
0.010

@Frequency 1000 Hz
0.010

@Frequency 100000 Hz
0.010

@Frequency 100000 Hz
Processing Properties Metric English Comments
Cure Time 240 min

@Temperature 65.0 °C
4.00 hour

@Temperature 149 °F
1440 min

@Temperature 25.0 °C
24.0 hour

@Temperature 77.0 °F
Pot Life 30 min
30 min
Descriptive Properties Value Comments
Color Black
Cytotoxicity Study Passes
ISO 10993-5, elution method
Heat Distortion Temperature °C 102
Mix Ratio, parts by weight 100/105
Resin/Hardener
Outgassing, NASA Passes
Thixotropic Index 1.3
5 rpm/50 rpm
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