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March 2006

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Subject:
From:
Brian Ellis <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Brian Ellis <[log in to unmask]>
Date:
Tue, 28 Mar 2006 16:07:36 +0300
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Replace. If not, negotiate with them your costs++. Certainly, do not use
cyanacrylate, but a slow-cure epoxy should not present any difficulty,
provided you can separate them after.

Brian

John Wheeler wrote:
> We had a PCB shop score some of our board too deep and they are falling
> apart on our assembly line. The board shop admits fault but want us to
> still use them. They have come up with a solution to use Super Glue or
> Epoxy A-B pate on the scores to strengthen the scores. I have concerns
> that the glue/paste will weaken when going thru our wave with temperatures
> of 250F. At what temperature will the glue/paste change state? Does it
> emit vapors, does it dry up and flak off? Will it contaminate the wave?
> Anyone have any experience or thoughts on this?
>
> TIA,
>
> John
>
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