Flexible Electrically Conductive Silver Epoxy Electrical Modules 2919, 2.5 gm

Description

Technical Product Bulletin
FOOD & DRUG APPLICATION EPOXY ADHESIVE
PRODUCT DESCRIPTION:
AA-DUCT 2919 is a non-bleeding, electrically conductive, silver-filled epoxy formulation recommended for electronic bonding,
coating, and sealing applications that require high flexibility coupled with good electrical and mechanical properties.
This two-part, thixotropic adhesive of refined pure silver and epoxy resin components is free of solvents and copper or carbon
additives. It develops resilient, electrically and thermally conducting bonds and coatings between many different and dissimilar
materials such as metals, ceramics, glass and plastic insulates.
AA-DUCT 2919 cures at room temperature and can be used as a flexible "cold-solder" for heat-sensitive components where
hot-soldering is impractical. It also can be used for the assembly and repair of electrical modules, flexible circuits, membrane
switches, wave guides, flat cable and high frequency shields.
GENERAL DESCRIPTION:
Appearance
Silver
Cure Type
Room temperature or Heat cure
Benefits
Free of solvents and copper or carbon additives
Coatings between many different and dissimilar substrates
Mix Ratio by weight
90:100 / Resin:Hardener
Substrates
Metal
Ceramics
Glass
Thixotropic Index
4.9
Typicall Application
Assembly and repair of electrical modules, flexible circuits, membrane switches, wave guides, flat cable and high frequency shields
Electronic bonding, coating, and sealing applications
Can be used as a flexible "cold-solder"
CURE SCHEDULE:
4 Hours
@ 65 °C
24 Hours
@ 25 °C
UNCURED PROPERTIES:
Specific Gravity, mixed
2.32 g/cc
Pot Life
30 mins
Solid Content
100%
Volatile Organic Compounds (VOC) Content
24.41 g
Viscosity
995000 cPs @ 25 °C
MISC PROPERTIES:
Shelf Life
1 Year
Hardness, Shore D
80
Adhesives Bond Strength
Lap shear, alum to alum
90 psi in 24hrs @ 25 °C
170 psi in 4hrs @ 65 °C
ELECTRICAL PROPERTIES:
Volume Resistivity
0.00011 ohm-cm
cured 4 hrs @ 65 °C
0.0016 ohm-cm
cured 24hrs @ 25 °C
THERMAL PROPERTIES:
CTE, linear
19.4 μin/in-°F @ 68 °F
Thermal Conductivity
11.1 BTU-in/hr-ft²-°F
Operating Temperature
-60.0 °C to 110 °C
Glass Transition Temp, Tg
4.00 °C, 39.2 °F
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 2919 completely 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.
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