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Reply To: | TechNet E-Mail Forum. |
Date: | Fri, 17 Jul 1998 09:33:09 -0700 |
Content-Type: | text/plain |
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Mark,
Good question to ask BEFORE you see the coating coming loose. When we
switched to the no-clean flux, we found that the residue had a significant
effect on the adhesion of our Humiseal 1B31. We had planned to give all
assemblies a final saponified water clean anyway, and this was enough to
remove the residue so that no coating problems were encountered. I do
understand that other non-acrylic coatings are not as sensitive.
Ralph Vaughan
Boeing-Atlanta
> ----------
> From: Mark Pozorski[SMTP:[log in to unmask]]
> Reply To: TechNet E-Mail Forum.;[log in to unmask]
> Sent: Friday, July 17, 1998 1:03 PM
> To: [log in to unmask]
> Subject: [TN] Conformal Coating Adhesion over low res. Fluxes
>
> Has anyone had experience with conformal coating over a "no-clean"
> flux residue? Right now we are using a Humiseal - 1B73 Acrylic,
> and using a water soluble flux. We are in the process of going
> outside with this assembly and most of the contract houses that we
> have talked with use no clean. thanks
>
> Mark
> ADC Telecom.
>
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