parts that are to be brazed should be clean and free of
dirt, oil, rust and oxide. When brazing, you generally want
to heat the components to be joined as equally as possible
so the entire assembly uniformly comes up to temperature.
Keep the torch moving and do not heat the joint (or the
brazing alloy) directly. If brazing a small assembly, you
may heat the entire assembly: if your components are large,
apply heat to a broad area around the joint.
When the parts are up to temperature (typically a dull
red color), touch the Handy One flux cored wire to the joint
area. The flux and alloy will melt and be drawn by capillary
attraction down into the joint. The minimal amount of flux
in the Handy One cored wire reduces flux inclusions, yet
provides complete alloy penetration and high strength joints.