Hi Chuck - Dilute phosphoric acid can damage both anodized and chemical
conversion coatings and I would not recommend using it as cleaning
chemistry.
Dave Hillman
Rockwell Collins
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Brummer Chuck <[log in to unmask]>@ipc.org> on 09/10/2002 09:51:50 AM
Please respond to "TechNet E-Mail Forum." <[log in to unmask]>; Please respond
to Brummer Chuck <[log in to unmask]>
Sent by: TechNet <[log in to unmask]>
To: [log in to unmask]
cc:
Subject: Re: [TN] Cleaning Aluminum
Carrie,
Tony gives good advise. Terpines are good cleaners that just need plenty
of rinsing. If there are stubborn stains you can use dilute phosphoric
acid.
Chuck Brummer
-----Original Message-----
From: tony steinke [mailto:[log in to unmask]]
Sent: Monday, September 09, 2002 5:11 PM
To: [log in to unmask]
Subject: Re: [TN] Cleaning Aluminum
Carrie,
Have you looked at the citrus based cleaners. It seems they are everywhere
and there claim to fame is machined parts,(oil, fingerprints etc.)
cleaning.
I would do a hot water rinse after the citrus cleaners. Also most of these
cleaners are very enviromentally friendly.
Good luck
Tony Steinke
----- Original Message -----
From: "Morse, Carrie" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, September 09, 2002 1:24 PM
Subject: [TN] Cleaning Aluminum
I am looking for a cleaning solution to be used in conjunction with our
Ultrasonic cleaner that will
remove organics (such as finger oils) from machined aluminum parts. Some
of
the parts are
straight aluminum (untreated), some are clear anodized, and some are clear
chromated.
Preferably, I'd like to find one cleaner to fit all.
We are currently using Branson's MC-3 which is far too harsh and has
resulted in aluminum
oxide deposits and/or tarnishing even after repeated attempts to decrease
time and dilution
per the mfr's recommendation.
At this point I'm ready to use some Joy Dishwashing detergent, but, would
rather use a product
designed for industrial use that cost 100 times more so the customer's
perception of our
cleaning process will be enhanced :)
Due to the nature of the product these parts go onto, "cleanliness" cannot
be determined until
after an entire unit is built and tested. Therefore, I'm simply looking
for
companies that sell cleaners that
are intended to remove organics and I'll have to build samples and have
them
tested at the customer site.
(oh what fun!)
Thanks,
Carrie
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