Myth? Not really. Too bad google wouldn't pull out the tech report prior to 90s.
--------------------------
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----- Original Message -----
From: Inge Hernefjord [mailto:[log in to unmask]]
Sent: Sunday, August 11, 2013 06:48 PM
To: [log in to unmask] <[log in to unmask]>
Subject: Re: [TN] Silicone adhesives on tapes
Partly a myth, Bev. Like 'who is afraid of..'
Inge
On 11 August 2013 20:20, Bev Christian <[log in to unmask]> wrote:
> Rich and others,
> Some more history: Short chain silicones would also creep across a PCB and
> get into mechanical switches and in the little spark that formed just as
> the
> switch was closing the silicone molecules would decompose to form silica,
> another really good insulator that would NOT get out of the way.
>
> Bev
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Richard Kraszewski
> Sent: Saturday, August 10, 2013 2:07 PM
> To: [log in to unmask]
> Subject: Re: [TN] Silicone adhesives on tapes
>
> I only have seen some "suspected" occurrence of this.
>
> Somewhat dependant on how much is deposited, was the tape baked, and if you
> have an aromatic solvent based coating. The latter can extract some
> adhesive
> from the tape perimeter.
>
> You can however use Si based tape and never have issues.
>
> I personally think that is tendency to over react to the term silicone.
> That is due to hand-soldering where we all learn that silicone hand lotions
> hamper solderability (which they can), and older Si Ccings that use some
> rather obsolete cure catalyst mechanisms.
>
> Rich Kraszewski
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]] On Behalf Of Stadem, Richard D.
> Sent: Tuesday, August 06, 2013 8:18 AM
> To: [log in to unmask]
> Subject: [TN] Silicone adhesives on tapes
>
> Do you think the silicone adhesive on Kapton and Shercon tapes can create a
> manufacturing issue during conformal coating or for sensitive electronics?
> Doug, I would be especially interested in your respected input on this
> question.
>
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