Electronic Modules Printed circuits Integrated Circuit Silver Epoxy 2924, 2.5gm

Description

Technical Product Bulletin
Electrically Conductive, Low Shrinkage, Silver, 10gm
PRODUCT DESCRIPTION:
AA-DUCT 2924 is a two part electrically conductive composition developed for low shrinkage; low resistivity bonding applications where good electrical and physical
properties over
a wide temperature range (up to 190°C) are required.
AA-DUCT 2924 is smooth paste formulation of refined pure silver and epoxy is free of solvents and copper or carbon additives. It can be used -- after REQUIRED
high temperature
cure cycle -- for the assembly, manufacture and repair of electronic modules, printed circuits, integrated circuits, electrical contacts, capacitors, wave
guides and flat cables, for
high-frequency RF shielding, and for applications where a "hot" soldering iron is impractical.
When cured AA-DUCT 2924 is a hard, dimensionally stable, conductive material which is resistant to water, weathering, gases and vapors, lubricants, fuels, alcohol,
and also to those
salts, salt solutions, mild acids and alkalis, and other organic and inorganic compounds with which silver itself is compatible.
GENERAL PROPERTIES:
Appearance
Silver
Cure Type
Heat cure
Benefits
·
High strength
·
Perfect bond
Mix Ratio by weight
100:5 / Resin:Hardener
Substrates
Aluminum
Copper
Magnesium
Steel
Bronze
Nickel
Kovar
Ceramic
Glass
Phenolic
G-10 epoxy glass boards.
UNCURED PROPERTIES:
Mixed Viscosity
25,000
Specific Gravity, mixed
2.66
Reactive solids contents, %
100
Pot Life
3 hours
Shelf life
1 year
CURE SCHEDULE:
2 hours
@ 100°C
1 hour
@ 125°C
CURED PROPERTIES:
Hardness, Shore D
85
Adhesive bond strength
1270 psi
Volume Resistivity ohm-cm
<0.0003
THERMAL PROPERTIES:
CTE, linear
27.2
µin/in-°F
@ 68.0 °F
Thermal Conductivity
190 °C    374 °F
Glass Transition Temp, Tg
92.0 °C   198 °F
Operating Temperature
-60 to 190 °C
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 2924 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 c
omponents 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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