Same here we used alcohol to remove the residue.  Ultimately your profiling process should burn off all the flux.  You might want to re-check that process as well.

Ronald D. Peeler Jr., B.S. IE 
Process Engineer 
SWEMCO 
Moorestown, NJ 08057 
Tel: (856).222.9900 ext. 31 
Cel: (484).948.0779 
Fax: (856).222.0700 
[log in to unmask]



-----Original Message-----
From: TechNet [mailto:[log in to unmask]]On Behalf Of [log in to unmask]
Sent: Wednesday, July 11, 2007 3:02 PM
To: [log in to unmask]
Subject: Re: [TN] No Clean flux residue after water wash


Yes, I have experienced this issue and found that using a saponifer or alcohol removed the residues. 

Kat

----- Original Message -----
From: "Tom P. Hummel" <[log in to unmask]>
Date: Wednesday, July 11, 2007 1:50 pm
Subject: [TN] No Clean flux residue after water wash
To: [log in to unmask]

> 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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