To the "Net":

I have boards which require some rework. The boards have been conformally
coated with Dow-Corning 1-2577. Coating has been thoroughly removed from the
affected area. The part has been removed. I have a selective soldering
pallet that will expose only the leads for this one part when I re-run the
board over the wave solder machine using water soluble flux. None of the
other soldered leads are reflowed during this operation. This part of the
process is working well.

The question that I have is, I wonder if there is any harm done to  the
conformal coating when running it through my in-line water cleaning system.
Inspection under blacklight reveals that the coating is intact. I cannot see
any visible damage. Does anyone have any experience with water cleaning
circuit boards with conformal coating on a portion of the board ?

Thanks,

Bill Kasprzak
Moog Inc.
716-652-2000 ext 2507
[log in to unmask]

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