Re: Good coating for condensation protection?

From: Rich Webb (bbew.ar_at_mapson.nozirev.ten)
Date: 12/29/04


Date: Wed, 29 Dec 2004 21:44:59 GMT

On Wed, 29 Dec 2004 15:20:58 -0500, "Bill Stock" <Me7@Privacy.net>
wrote:

>I've got a temperature sensor circuit which is subject to severe
>condensation. What's a good protective coating? I was thinking of filling
>the enclosure with silicone caulk, but I imagine some spray coating might be
>better?

With my deep experience with silicone caulk (including leaky showers ;-)
I'd say that the problem with silicone is that it doesn't "wet" many
surfaces. If there's any motion or vibration, I'd be afraid that it
would develop a small gap at the surface interface and draw up water via
a capillary effect. I'd go with marine epoxy, myself.

One-off project or 100K/month commerial or ...?

-- 
Rich Webb   Norfolk, VA


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