https://www.sino-welding.com/news/flux-core-aluminum-welding-wire.html
Flux Core Aluminum Welding Wire is referred to as gasless aluminum welding wire, it sounds like a suitable option for a minor welding job. And one that can save you hundreds on MIG welding gas and a spool gun. Does aluminum flux core welding wire even exist? And, can you weld aluminum with a flux core welder? A simple internet search turns up interesting, but mostly unhelpful results that contribute to the confusion.
Flux Core Soldering and Brazing Wire
While these are flux-cored filler materials for joining aluminum, soldering and brazing are different processes that don't work in a welder. Arc welding is just too hot for this wire. Although not what we're looking for, brazing rods are a handy way to join aluminum material without expensive gear. If you learn this technique and keep a few rods on hand, someday you'll be glad you did.
