Paul,
To prevent all your efforts from going down the drain, I hope you meant sink
as term to describe a catch or holding basin for a closed-loop filtration
system. There are many specific cleaning systems out there that would be
more suitable.
Dewey

-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of Black, Paul
Sent: Wednesday, September 01, 2004 7:58 AM
To: [log in to unmask]
Subject: [TN] Cleaning populated boards with Isopropyl


Hi Everyone,

I currently clean SMT stencils in a sink with hot deionized water. I would
like to automate this process (and eliminate the DI water) and have been
looking at cleaners that can do the job. One of them uses Isopropyl Alcohol
with no rinsing. This should work fine for the stencils but occasionally I
also have to clean misprinted boards that may already be populated on one
side, using no-clean solder paste. If I were to use this Isopropyl process
on the misprints, would I be risking reliability of the board?

Any help would be appreciated.

Thank you,
Paul Black
Manufacturing Engineer
Kronos
E-mail: [log in to unmask]
Voice: (978) 947-1520


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