Steve,
Don't know anything about adding dyes to the flux. But, we use to put
those round colored dots that you get at a office supply store on the
flux bottles and solder rolls. Had different color dots signify the
different types of flux. For example, red dots meant RMA, yellow meant
No Clean, etc. Worked really good.
Larry Koens
SMT Manufacturing Engineer
E.I. Microcircuits
1651 Pohl Road
Mankato, MN
56001
507-345-5786 Ext. 287
507-345-7559 Fax
[log in to unmask]
-----Original Message-----
From: Stephen R. Gregory [mailto:[log in to unmask]]
Sent: Friday, March 16, 2001 11:10 AM
To: [log in to unmask]
Subject: [TN] Flux dye...
Hi ya'll!
We use three different flux types in our processes here. No-clean (for
hand
soldering items that can't be cleaned...unsealed switches, etc.) RMA
(because
some of our customers require it), and OA (for everything else...).
We seem to occasionally have a problem with our operators picking up the
wrong bottle of flux thinking it is no-clean, but it is OA...and yes,
the
bottles are labeled, but it still happens...
Is there some sort of dye that could be put into the flux that wouldn't
hurt
the chemistry of the flux, would wash off completely, and not turn other
things colored? I'm thinking that if there's a really different color to
OA
flux, it would lessen the chance picking-up the wrong bottle, and you
can
easily tell when OA's haven't been cleaned from the board.
Just trying to make things "monkey-proof" if ya' know what I
mean...hehehe.
-Steve Gregory-
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