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. > > This message and/or attachments may include information subject to GDC4S > S.P. 1.8.6 and GD Corporate Policy 07-105 and are intended to be accessed > only by authorized recipients. Use, storage and transmission are governed > by > General Dynamics and its policies. Contractual restrictions apply to third > parties. Recipients should refer to the policies or contract to determine > proper handling. Unauthorized review, use, disclosure or distribution is > prohibited. If you are not an intended recipient, please contact the sender > and destroy all copies of the original message. > > > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________