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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