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Subject:	Re: Conformal coating or not ?
From:	Brian Ellis <[log in to unmask]>
Reply To:	TechNet E-Mail Forum.
Date:	Tue, 12 Jun 2001 17:48:53 +0300
Content-Type:	text/plain
Parts/Attachments:	text/plain (46 lines)

Jorge

If you can guarantee that it will be impossible for condensation to
occur on the assembly, then it may be you could dispense with conformal
coating. This can be done by not using a weatherproof/dust-tight box,
but a hermetic one, and making sure that it is filled with a dry gas.
Alternatively, you can heat the assemblies and any metalwork above them
to about 10°C over ambient, so that any condensation will occur below
the assemblies, where it can do no harm. You may find cleaning and
coating the easiest solution, though.

Brian

Jorge Santana wrote:
>
> Hi
>
>   I am not familiar to conformal coating process and I would like some
> advice of using or not conformal coating in this specific application.
>   The board will located outside and should work properly for several years,
> but will be enclosed inside a WEATHERPROOF and DUST-TIGHT box, this
> condition is enough for not use conformal coating ?
>   Thanks for any advice.
>
> Jorge Santana
>
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