Has anyone had any success using a no-clean flux on thick (0.090") multi-layered
thru-hole PCB assemblies?

We want to switch to a no-clean flux from our present aqueous system. Our
Electovert currently has a foam fluxer but would get a jet-sprayer if the flux
was right. However, we tried a few demo no-clean fluxes and experienced problems
with our larger and thicker multilayer boards as far as solder wicking up to the
top-side on feed-thru's. We even added extra heated air-knives and to no avail.

If you have had success with any particular no-clean fluxes, please let me know
what they are.

Thank you.
Fred

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