Rod and flux are deposited at the weld simultaneously in exactly the right amounts. No need to dip rod in flux can, which saves time and labor. No wasteful residue of flux remains on the face of the weld. Flux coated low fuming bronze penetrates deeply into cracks and seams to build a sound, non-porous deposit of weld metal for making leak-proof joints. Often is used in water, oil and gas lines. Flux coating adheres firmly to the rod, eliminating chipping and back burn. A relatively low melting point allows for excellent tinning properties and control by the welder.