Nickel-filled electrically conductive adhesive from Emerson & Cuming

CE-3520-3, from Emerson & Cuming, is a one component, nickel-filled, low-temperature curing electrically conductive adhesive. It is a modified epoxy combing the strength of epoxy and the flexibility of a silicone. CE-3520-3 is suited for mismatched TCE applications such as substrate attach and heat sink bonding. It has good high temperature characteristics, being useful up to 150oC. The CE-3520-3 is designed for syringe dispensing applications. It can be cured as fast as 30 minutes at 150oC. The CE-3520-3 is nickel-filled, which gives it a volume resistivity of 2.0 x10-1 ohm-cm. In addition, the material has a working life of three days at 25oC.