Hmmmm, but if the problem was a Teflon or silicone mold release agent, that
should not have worked.  Could it be that the boots had more of an oil
issue, as Lee suggested?


Doug Pauls
Principal Materials and Process Engineer
Rockwell Collins

On Wed, Apr 15, 2015 at 9:55 AM, Steve Gregory <[log in to unmask]> wrote:

> Hi Graham!
>
> Baked the boots last night and they worked like a charm! Thanks again
> buddy!
>
> Steve
>
> On Tue, Apr 14, 2015 at 10:34 AM, Graham Naisbitt <
> [log in to unmask]> wrote:
>
> > Hi Steve
> >
> > I used to make these. Bake them overnight >12 hours at 80C. That should
> do
> > the trick. Let me know if it doesn’t.
> >
> > I assume these will be a silicone “rubber”. Who is your supplier -
> > Kinarney Rubber in New England? If not, give them a call.
> >
> > Graham Naisbitt
> >
> > > On 14 Apr 2015, at 17:25, Steve Gregory <[log in to unmask]> wrote:
> > >
> > > Thanks Doug! So is there anything you can do, like wash them in alcohol
> > or
> > > something?
> > >
> > > Steve
> > >
> > > On Tue, Apr 14, 2015 at 10:23 AM, Douglas Pauls <
> > > [log in to unmask]> wrote:
> > >
> > >> Steve,
> > >> In my experience they do.  We sometimes see the same thing, whether
> > molded
> > >> rubber or molded vinyl.
> > >>
> > >>
> > >> Doug Pauls
> > >> Principal Materials and Process Engineer
> > >> Rockwell Collins
> > >>
> > >> On Tue, Apr 14, 2015 at 11:21 AM, Steve Gregory <[log in to unmask]>
> > >> wrote:
> > >>
> > >>> Hi All,
> > >>>
> > >>> Just got some black ESD rubber masking boots for some blade terminals
> > for
> > >>> a
> > >>> board that we dip in Humiseal 1A33, and noticed that there is
> shadowing
> > >>> around the base of the terminals like something was repelling the
> > coating
> > >>> away from them, maybe some sort of mold release compound? Tried
> dipping
> > >>> without the boots and we don't see the shadow. I got the boots to
> keep
> > the
> > >>> coating from getting on the terminals so that we weren't sitting
> there
> > >>> with
> > >>> a conformal coat removal pen cleaning the terminals up after we
> dipped
> > the
> > >>> boards.
> > >>>
> > >>> I called the manufacturer of the boots and asked about the issue, and
> > he
> > >>> said they would get back to me. Haven't heard anything yet. I'll try
> to
> > >>> get
> > >>> a picture that shows you what I'm talking about...
> > >>>
> > >>> Steve
> > >>>
> > >>> --
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