Technical Product Bulletin
SILVER FILLED ELECTRICALLY CONDUCTIVE EPOXY ADHESIVE
PRODUCT DESCRIPTION:
AA-DUCT 919 is an electrically conductive, silver-filled epoxy formulation recommended for high performance bonding, coating, and sealing applications with good electrical and mechanical properties. Optimized for acoustic marine applications.
AA-DUCT 919 is two-part one to one mix ratio, smooth paste adhesive of refined pure silver and epoxy resin components free of solvents. It develops strong, durable, resilient, electrically and thermally conducting bonds and coatings between many different and dissimilar materials such as metals, ceramics, glass and plastic.
AA-DUCT 919 cures at room temperature or more rapidly at elevated temperature and can be used as a "cold-solder" for heat-sensitive components where hot-soldering is impractical. It is 100 % reactive also can be used for the assembly and repair of electrical modules, electrical circuits, wave guides, and many industries.
PRODUCT PROPERTIES:
| Appearance | Silver |
| Cure Type | Heat cure or Room temperature |
| Benefits | High strength Perfect bond Cold solder for electronic components |
| Mix Ratio by weight | 100:100 / Resin:Hardener |
| Substrates | Excellent choice aluminum, copper, magnesium, steel, bronze, nickel, kovar, ceramic, glass, phenolic and G-10 epoxy glass boards, PCB. |
| Operating Temperature | –20 to +140°C |
| Typical Applications | Acoustic, Marine, Electrical, conductive, rmi/efi shielding, circuitry, printed circuit board and electronics repair |
UNCURED PROPERTIES:
| Specific Gravity, mixed | 2.85 |
| Reactive solids contents, % | 100 |
| Pot Life | 1.5 Hour |
| Shelf Life | 1 Year |
| Viscosity | Paste |
CURE SCHEDULE:
| 15 minutes | @ 100°C |
| 45 minutes | @ 50°C |
| 24 hours | Room temperature |
CURED PROPERTIES:
| Hardness, Shore D | 85 |
| Lap shear strength, psi | 5 N/mm2 700 psi |
| Volume Resistivity ohm. cm | < 0.0001 |
| Thermal Expansion Coefficient, (cm / cm / °C • 10-5) | 1.5 |
| Thermal Conductivity, btu / hr / ft2 / °F / in | 100 |
| Tensile Strength, psi | 9500 |
| Compressive Strength, psi | 14,000 |
| Heat Distortion, °C | 95 |
GENERAL INFORMATION: |
For safe handling information on this product, consult the Material Safety Data Sheet, (MSDS).
HOW TO USE:
1) Carefully clean and dry all surfaces to be bonded.
2) Apply AA-DUCT 919completely mixed adhesive to the prepared surfaces, and gently press these surfaces together. Contact pressure is adequate for strong, reliable bonds; however, maintain contact until adhesive is completely cured.
3) Some separation of components is common during shipping and storage. For this reason, it is recommended that the contents of the shipping container be thoroughly mixed prior to use.
4) Some ingredients in this formulation provided may crystallize when subjected to low temperature storage. A gentle warming cycle of 52°C for 30 minutes prior to mixing components may be necessary. Crystallized epoxy components do not react as well as liquid components and should be re-dissolved prior to use for best results.
AVAILABILITY:
This epoxy can be supplied in various different packages.
Data Sheets: TDS | MSDS available upon request.
