Features. Blue paste brazing flux for stainless steel, nickel, monel, copper alloys, and silver alloys. Active at 1000 °F protects up to 1600 °F. Performs to AWS A5.31, Type FB3-A, AMS 3410F, ...

For example, because brazing requires higher temperatures than soldering ... For example, a flux classified as 1.2.2.B represents a resin-type flux with a rosin base and halide activators in a paste ...