In a message dated 1/18/2006 4:44:36 PM Eastern Standard Time,
[log in to unmask] writes:

I am  currently using a water-soluble, lead-free solder paste from Kester. I
am  trying to minimize the cleaning cycles so I leave flux on the product  for
an extended period of time. Do any of you have any recommendations on  the
amount of time flux can be left on the product without affecting  the
cleaning process? Thanks in advance for your  input.



Each flux is different.  There are some that can stay 48 hours  or longer
without ill effects.  Others need to be cleaned in 4 or  less.  Ask the supplier.



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