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Chemically Resistant adhesives

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Atom Adhesives AA-DUCT 904 Epoxy Adhesive
Categories: Polymer; Adhesive; Thermoset; Epoxy; Epoxy Adhesive

Material Notes: AA-DUCT 904 is a single component, heat curing, conductive epoxy that was designed for ease in handling. This high performance conductive epoxy cures quickly at elevated temperatures making it ideally suited for rapid processing and assembly. AA-DUCT 904 offers excellent mechanical, electrical, and physical properties at continuous operating temperatures up to 175°C. This versatile silver conductive adhesive can be used for chip bonding in micro and opto-electronic hybrid circuit fabrication. AA-DUCT 904 has also been used in microwave applications for EMI and FRI shielding, for assembly and repair of circuit boards and electronic component manufacturing. AA-DUCT 904 is a smooth, soft paste that can be applied by hand application, automatic dispensers, screen-printing, transfer or stamping techniques. It is available in both a lower and higher viscosity grade for use in a variety of dispensing equipment and application techniques.

Appearance: Silver

Cure Type: Heat cure or Room temperature

Benefits:

  • High strength
  • Excellent mechanical, electrical properties
Substrates: Excellent choice for Integrated Circuits, aluminum, copper, magnesium, steel, bronze, nickel, ceramic, glass, phenolic and G-10 epoxy glass boards

Information provided by Atom Adhesives

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Physical PropertiesOriginal ValueComments
Specific Gravity 3.60 g/cc
Viscosity 200000 cPuncured
Outgassing - Total Mass Loss 0.070 %WVR
 0.38 %
Collected Volatile Condensable Material 0.010 %
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 83cured
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity <= 0.0010 ohm-cm
 
Thermal PropertiesOriginal ValueComments
CTE, linear 60.0 µm/m-°C
Thermal Conductivity 16.1 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 175 °C
 325 °CIntermittent
Minimum Service Temperature, Air -55.0 °C
 
Processing PropertiesOriginal ValueComments
Cure Time 0.500 hour
@Temperature 175 °C
 1.00 hour
@Temperature 150 °C
 2.00 hour
@Temperature 125 °C
Shelf Life 6.00 Monthuncured

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PATOM044 / 172359

Chemically Resistant adhesives

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