Steve,

 Wow, I saw your note and link, that was an interesting suggestion.

 I did see that note under the heading of "Manual Assembly for Prototypes".
I wonder if they were just trying to make sure some engineers did a good job
of cleaning by hand? 

 Very often when I remove a part and solder using de-older braid there is a
lot of "Gunk" left on the PCB. I often use a Q-Tip and acetone to clean. I
find acetone a much more aggressive solvent and it dries quickly. This
thread gives me some comfort with using acetone.

But, wow does acetone burn and wow does it produce vapors. Probably not a
super safe desktop substance.

Bob

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Thursday, February 20, 2014 12:27 PM
To: [log in to unmask]
Subject: Re: [TN] Acetone as a cleaning agent for PCBA's

Hi Bob,

It's funny you should mention that. We're looking at building a board that
contains these little devices from Avago that says to clean with with
Acetone and rinse with Alcohol:

http://www.avagotech.com/docs/AV02-2001EN

I've never had to do that before. Hmmmmm....

Steve 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Robert DeQuattro
Sent: Thursday, February 20, 2014 10:00 AM
To: [log in to unmask]
Subject: [TN] Acetone as a cleaning agent for PCBA's

I have a customer that uses acetone to wipe down their PCBA's upon receipt.
The assemblies we make for them are cleaned using a closed loop aqueous
board washer then sampled for cleanliness with our zero-ion tester per
J-std-001E guidelines.
Recently this customer commented that boards appeared dirty upon cleaning
with the acetone.  Does anyone have any thoughts on this acetone cleaning
process.
Thanks,

Bob

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