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From: email@example.com (Jumbaliah)
Subject: Re: Potting/Encapsulating - Epoxy ontop of Silicone?
Date: 12 Nov 2002 09:40:38 -0800
References: <firstname.lastname@example.org> <email@example.com>
NNTP-Posting-Date: 12 Nov 2002 17:40:38 GMT
firstname.lastname@example.org (Gibbo) wrote in message news:<email@example.com>...
> firstname.lastname@example.org (Gibbo) wrote:
> >email@example.com (Jumbaliah) wrote:
> >>I'm thinking of encapsulating a small circuit board with Silicone
> >>(Neutral cure) because it has surface mount parts. But I wondered if
> >>I could then encapsulate that assembly with epoxy to give me a hard
> >>outer shell with a gooey centre ;). Has anyone tried this? Any tips?
> >> I wondered about how well the epoxy would bond with the outer surface
> >>of the silicone, if at all, and under temperature cycles if the
> >>silicone would 'peel' off the inside surface of the epoxy shell.
> I'll actually put the reply on this time !
> There just been a thread on here "side effects of potting compound" which
> addresses a few of these issues.
> I do know from my own recent experiences that the bonding obtained from epoxy
> ontop of silicon is almost non-existent. When breaking at apart it literally
> fell off the silicon.
Thanks, It was an interesting read. Answered other questions I had too.
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