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. GENERAL PROPERTIES: Appearance Silver Cure Type Heat cure or Room temperature Benefits High strength Excellent mechanical, electrical properties Substrates Excellent choice aluminum, copper, magnesium, steel, bronze, nickel, ceramic, glass, phenolic and G-10 epoxy glass boards. Operating Temperature Up to 325 °C Typical Applications Electrical, conductive, rmi/efi shielding, circuitry, printed circuit board and electronics repair UNCURED PROPERTIES: Viscosity At 25 °C cps 200000 Shelf Life 4 months At 25 °C 6 months refrigerated CURE SCHEDULE: 30 minutes At 175 °C 1 hour At 150 °C 2 hours At 125 °C MISC PROPERTIES: Hardness, Shore D 83 Volume Resistivity ohm cm Greater than 0.001 GENERAL INFORMATION: For safe handling information on this product, consult the Material Safety Data Sheet, (MSDS). AVAILABILITY: This epoxy can be supplied in various different packages. Call (888) 522-6742 for more information.