Used on bronze, steel, brass, and malleable iron Can doesn't melt 0.5 pound can
KT Industries 2-2750 Brazing Flux, 0.5 lb
Flux Eco Smart Black Paste - ARC Welding & Safety Supplies
Eco Smart® Boric Acid-Free Black Powder Brazing Flux 1 ea Jar
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Borax based Deoxidizing Casting Powder Flux (250g) – Black Dragon Forge
Borax Brazing Flux (250g) for brazing brass and metal pipes and surfaces
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Alpha Borax Brazing Flux (250g)