The AIM technical data sheet says: 
CLEANING
264-5 can be cleaned, if necessary, with saponified water or an appropriate
solvent cleaner. Please refer to the
AIM No-Clean-Cleaner Matrix for a list of suitable le cleaning materials.

I don't think your process is appropriate 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Tom P. Hummel
Sent: Wednesday, July 11, 2007 2:50 PM
To: [log in to unmask]
Subject: [TN] No Clean flux residue after water wash

Fellow TechNetters,

 

We are experiencing a white residue on the solder side of some boards after
going through our wash system.  We are wave soldering the boards on a SeHo
wave solder machine using Aim NC-264-5 no clean flux.  The boards have some
additional components installed by hand using water soluble flux/solder.
The boards are then run through our Aqueous Technologies SMT series board
washer.  When they complete the drying cycle, there is a white residue on
the solder side of the boards that is very difficult to remove.  Has anyone
else seen this residue from washing a board after using no clean flux?  Does
anyone have any recommendations to help eliminate the residue?

 

 

Thomas P. Hummel

Carlton Industries Corp

 

 

 

 


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