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September 2002

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Subject:
From:
David Douthit <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Wed, 18 Sep 2002 16:24:27 -0700
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text/plain
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Graham,

I have been reporting problems for 8 years!!

No seems to listen!!

David A. Douthit
Manager
LoCan LLC



Graham Naisbitt wrote:

> > Hello technet,
> >
> > I'm looking for user experiences, pro and con, with strip-able conformal
> > coatings.  I assume that means we'd be talking about an acrylic (type AR)
> > coating.  I need a requirement for a removable conformal coat for one of
> > our products.   We would spray apply this coating.
> >
> > We presently use an urethane coating that has excellent chemical and
> > environmental resistance but unfortunately can't be readily stripped.
> >
> > Thanks.
> >
> > -- Gregg Klawson
> > General Dynamics C4 Systems
> >
> Gregg,
>
> Following on from some of the responses, I would recommend the use of
> certain poly-glycols as stripping agents.
>
> Most coating manufacturers have proprietary stripping chemistries, and you
> would be well advised to use these according to the manufacturers
> recommendations, rather than to mess around with ad hoc mixtures of your own
> creation...unless you know what you are doing!
>
> I am puzzled about David Douthit's remarks, because we have military and
> automotive customers who have used our acrylics for the past 30 years with
> no reported problems.
>
> Note that there are now water based acrylics that feature the same
> characteristics as the solvent based parents, so you might like to
> investigate these?
>
> --
> Regards, Graham Naisbitt
> [log in to unmask]
> Mobile: +44 (0)79 6858 2121
>
> Concoat Limited - Engineering Electronics Reliability
>
> Web: www.concoat.co.uk   AND  www.concoatsystems.com
>
> NOTE: NEW ADDRESS :NOTE
>
> Sales:
>
> Millfield House, Fleet Road
> Fleet, Hampshire GU51 3QF UK
> Phone: +44 (0)1252 813706
> Fax: +44 (0)1252 813709
>
> Manufacturing and Head Office:
>
> Alasan House, Albany Park
> Camberley, Surrey GU16 7PH UK
> Phone: +44 (0)1276 691100
> Fax: +44 (0)1276 691227
>
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