They are cleaning the boards, but isn't the flux bonded in the solder joint so that when replacing
a component, for instance, we would be mixing two fluxes?

Thanks.

Dan Cavaliere



Charles Caswell <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>

09/20/01 10:33 AM
Please respond to "TechNet E-Mail Forum."

       
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        Subject:        Re: [TN] Mixing fluxes


If the subcontractor ( your company ) is cleaning the assembly after
soldering you will not be mixing flux. There should be no NR200 left on
the boards.
Charles Caswell
Process Lead, PCB
Frontier Electronic Systems

-----Original Message-----
From: TechNet E-Mail Forum. [mailto:[log in to unmask]]
Sent: Thursday, September 20, 2001 9:49 AM
To: [log in to unmask]
Subject: [TN] Mixing fluxes


Does anyone know of any data concerning mixing fluxes, specifically
Kester
965 and Alpha NR200.  Our
situation is that we use Kester 965 in our wave solder and rework
process.
We have some boards
being built by a subcontractor using Alpha NR200.  Can we rework these
boards safely with Kester 965 flux?
Thanks!

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