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Tra-Con Tra-Duct 2902 Room Temperature Conductive Silver Epoxy Adhesive

Category Polymer , Adhesive , Thermoset , Epoxy , Epoxy, Electrically Conductive , Filled/Reinforced Thermoset
Manufacturer Tra-Con, Inc.
Trade Name Tra-Duct
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Tra-Con Tra-Duct 2902 Room Temperature Conductive Silver Epoxy Adhesive.pdf
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Material Notes:
TRA-DUCT 2902 is an electrically conducting silver-filled epoxy compound recommended for electronic bonding and sealing applications that require a combination of good mechanical and electrical properties. This two-part, smooth paste formulation of refined pure silver and epoxy is free of solvents and copper or carbon additives. It develops strong, durable, electrically and thermally conducting bonds and coatings between many different and dissimilar materials such as metals, ceramics, glass and plastic laminates. TRA-DUCT 2902 cures at room temperature and can be used as a cold solder for heat-sensitive components where hot-soldering is impractical. It also can be used for the assembly and repair of electrical modules, printed circuits, wave guides, flat cables and high frequency shields. This adhesive complies with the requirements of NASA Outgassing Specification. Information provided by Tra-Con Inc.
Physical Properties Metric English Comments
Specific Gravity 3.20 g/cc
3.20 g/cc
Mixed
Viscosity 20000 cP
20000 cP
Mixed (cp #52, 10 rpm)
Mechanical Properties Metric English Comments
Hardness, Shore D 80
80
Adhesive Bond Strength 4.83 MPa
700 psi
Lap shear, alum to alum, 24 hrs @ 25°C
6.89 MPa
1000 psi
Lap shear, alum to alum, 2 hrs @ 65°C
11.0 MPa
1600 psi
Lap shear, alum to alum, 1 hr @ 110°C
11.0 MPa
1600 psi
Lap shear, alum to alum, 15 min @ 150°C
Thermal Properties Metric English Comments
CTE, linear 49.0 µm/m-°C

@Temperature 20.0 °C
27.2 µin/in-°F

@Temperature 68.0 °F
Thermal Conductivity 2.99 W/m-K
20.8 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 110 °C
230 °F
Minimum Service Temperature, Air -60.0 °C
-76.0 °F
Glass Transition Temp, Tg 52.0 °C
126 °F
Ultimate Tg, 24 hrs @ 25°C
Electrical Properties Metric English Comments
Volume Resistivity 0.00030 ohm-cm
0.00030 ohm-cm
cured 5 min @ 160°C
0.00050 ohm-cm
0.00050 ohm-cm
cured 15 min @ 150°C
0.00060 ohm-cm
0.00060 ohm-cm
cured 1 hr @ 110°C
0.00090 ohm-cm
0.00090 ohm-cm
cured 2 hrs @ 65°C
0.0010 ohm-cm
0.0010 ohm-cm
cured 24 hrs @ 25°C
Processing Properties Metric English Comments
Cure Time 60.0 - 240 min

@Temperature 65.0 °C
1.00 - 4.00 hour

@Temperature 149 °F
1440 min

@Temperature 25.0 °C
24.0 hour

@Temperature 77.0 °F
Pot Life 60 min
60 min
Descriptive Properties Value Comments
Color Silver
Cytotoxicity Study Passes
ISO 10993-5, elution method
Mix Ratio, parts by weight 100/6
Resin/Hardener
Outgassing, NASA Passes
Outgassing, NASA, %CVCM 0.05
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