Originally Posted by
Dave H
Flux isn't always redundant. I recommend you try it on a new solder job. Doesn't take very much, use in moderation. It helps cut through surface oxidation and junk. Transfers heat for a faster flow/quicker joint, for less heat exposure to circuit boards etc. And helps direct the solder flow. Be sure to get a low activity type I think it is.
I have some but I never noticed anything working better so I never bother to use it. maybe it's because their solders are very good. that's what I always use. I've had the same roll for years.
it's really a shame they're going to start closing stores.