Flux Paste Model No: NPTC-F4L Welding Flux Brazing Flux1)We can supply Brazing Flux(Copper), Al Brazing Flux(Aluminum), White Brazing Flux 2)Feature:For brazing copper,brass,bronze,Stainless steel,nickel and other ferrous and nonferrous metals and alloys.Use with most all brazing alloys. 3) Effective to 1600 oF/871°C4)Master carton: 24 units, 4 oz per bottle. Brazing Flux