I fought the switchover from Rosin to No-Clean for a LONG time. Now I only use the Rosin flux for untinned components/wires and some of the crusty shit in PL's
I would think you would not need much Flux w a new board if any?
so w the No clean solder and a little bit of the Kester 951 would be the perfect match?
I think that paste flux and like you said would create mess and would defeat the whole Clean solder joint.
Thanks
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