Have used many other types of aluminum rods for soldering/soldering/welding (whatever you call them), some good, some not so many . The name speaks for itself. They don't have a flux core, don't flow until the aluminum itself melts, and even then they don't adhere well.
π₯ Tig Pen Rod Holder and Welding Finger Feeder by Dog River Tools - Maximize Your Welding Efficiency with our Feeder Pencil
12 Review
Hakko T18-BR02 Soldering Tip - T18 Series for Hakko FX-888/FX-8801 - Conical Shape - Bent 30 Degrees - R0.2 mm x 10.5 mm
12 Review
π₯ Whizzotech Solder Wire 60/40 Tin/Lead with Flux Rosin Core - 0.032 Inch Diameter for Electrical Soldering (4oz/100g/0.22lb)
13 Review
309LFC-O X .035 X 1LB Spool Gasless Stainless Steel Flux Core Welding Wire by Blue Demon
12 Review