Hi,
You can look at Hysol EA 934NA, TRA Bond 2112 (manufactured by Tra-Con) and/or Dow corning 3140 RTV Coating. We use the Hysol  EA 934 NA to stake the wires to the PCB as per IPC specs. The 3140 RTV is a "potting" material that encapsulates the components and protects them from exposure to the surroundings.


Amol Kane
M.S (Industrial Eng.)
Process Engineer
Harvard Custom Manufacturing 
941 Route 38  Owego, NY 13827
Phone: (607) 687-7669 x349
[log in to unmask]

 -----Original Message-----
From:   TechNet [mailto:[log in to unmask]]  On Behalf Of John Foster
Sent:   Thursday, January 19, 2006 11:32 AM
To:     [log in to unmask]
Subject:        [TN] Question about expoxies

Hello I am looking for some adhesives.

I need to bond some fr4 circuit cards to a piece of aluminum.
The boards are extremely small and only need to survive shock
in other words not pop off from a sudden jolt.

The boards also have wires soldered to surface mount pads 15 x 30 mils
I am using 32 AWG stranded wire and was hoping to find some kind
of epoxy to put over the soldered wires to give them strength.

The boards are about the size of my thumbnail. This
has been a real challenge for my fabricator and assembler first to route the
boards out and second
to solder the 2 ICS.

Any input on the epoxy and adhesive will really be appreciated

Thank You

John Foster

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