Handy Flux Type B-1 for Stainless Steel and Nickel Silver

This long-lasting paste flux won’t break down from prolonged heating. Paste formula specially designed for soldering nickel alloy (sometimes referred to as "nickel silver"), stainless steel, tungsten or super alloy; effective from 1,100°–1,700°F (593°–927°C). Contains potassium, hydroxide, boron and fluorides.