Brazing fluxes are generally of a highly corrosive nature. Flux residues are normally removed after brazing and soldering to prevent damage to the joint. Fluxes are matched to the temperature range of the alloys, filler metals that they are paired with. When used with solid forms of brazing and soldering alloy, fluxes are generally applied by brushing, dipping, or spraying the parts before heating. With paste alloys, the flux is built into the mixture along with metal alloys in powder form.
Fusion also has homogeneous dispensable fluxes to use with wire, rings, and preform alloys.
These fluxes are formulated to be dispensed automatically through Fusion applicators.