25 or so years ago, Wally's (Rubin) Wonder Flux (Multicore Xersin), 
which was claimed to be inert after soldering, had a CC variant that 
could be applied over the residues. I never tested it, mainly because 
WWF was not really the best flux in the world for oxidised leads. 
Theooretically, it sounds as if it may do the job.

Brian

Ken Bloomquist wrote:
> We have a twelve leaded, through-hole component that has to be hand soldered
> on the circuit board. The assembly gets conformal coated with urethane. We
> would like to hand solder these twelve leads using no-clean and then
> conformal coat the board. The component would be added as a final step after
> the assembly has first been cleaned.
> 
> Since this is not a "total no-clean" process do you see any issues applying
> conformal coat over these twelve no-clean solder joints?
> 
> Best regards,
> 
> KennyB
> 
> 
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