The key factor when spraying a conformal coating is that the air used
must be absolutely clean. I recommend bottled nitrogen as being
non-reactive (some coatings can react with oxygen when finely divided).
Above all, do NOT use shop compressed air unless you are 999% sure that
it is perfectly clean, dry, oil- and particle-free, which is
**extremely** difficult to achieve (and very expensive to do so).

Brian

[log in to unmask] wrote:
>
> I hope this one gets though. First thanks to all for the help you have given and
> the education I receive from the Technet. I have trouble responding in kind, our
> e-mail doesn't always let me reply.
>  Now the question. Does anyone spray Solithane 113 conformal coat?  We are
> currently brushing with it, but I have been asked to spray. Is there any special
> info I should know? We spray manually with a paint gun or an airbrush.
> Thanks again ( especially my last question- soldering to stainless steel )
> Fortunately I won't have to do that after all.
>
> Charles Caswell
> Process Lead, PCB
> Frontier Electronic Systems
>
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