Andrew

Following Mike comments, I think you should be aware that manual dipping may
lead to other issues: the coating will be too thick and the runs that will
develop might take you outside IPC A-610 acceptance criteria.

Furthermore, the solvents in the coating may well be flammable, so using
electric drives etc., must be avoided - otherwise you might flambee the
assembly, and yourself!

The advantage, and probable reason for requiring the dip process is coverage
under, as well as over, the components. Of course both sides are coated at
the same time and, as Mike said, you can simultaneously coat many assemblies
at the same time - we can do 30 to 40 per 3 minute cycles.

Hope this helps,

Graham Naisbitt


On 10/1/06 21:40, "Joseph H. Smith" <[log in to unmask]> wrote:

> Fellow technetters.
>
> Anyone out there have experience with 'manually' dip coating conformal coat.
> I have never done the dipping coating process.  Machine spray and hand spray I
> have done.  The concept sounds simple enough but I was looking for advice on
> process got ya's or issues to watch for when doing the dipping.  Our customer
> is requiring the dipping process and currently doesn't wish to spend the money
> on more automated equipment.
>
> Andrew Kettlewell
> Sr Process Engineer
> Sypris Electronics
> Tampa, Fl
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