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May 2002

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Subject:
Re: Keeping RA and OA flux separate
From:
Brian Ellis <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 21 May 2002 18:18:41 +0300
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Phil

You touch on an essential point without a ready-made answer. Perhaps one
would be to stick a small coloured disc or a blob of paint on the
incoming PCBs that will be soldered with w/s flux and subsequently
washed. The colour should be the same as that of the w/s flux itself: no
colour match, no use! If the disc/paint happens to be water-soluble,
then you have a check that it has been washed, as well!

More reliable is to separate the production lines physically, but
probably less practical.

FWIW

Brian

Phil Nutting wrote:
>
> Good morning,
>
> Assuming that both RA (or RMA) and OA flux solders are needed (or used) in the assembly process, by what means do you keep them marked or used only on the correct applications?  We are a small facility so more than likely some assemblers will need both types at their bench.
>
> Thanks in advance,
>
> Phil Nutting
>
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