An easy-flowing, high-quality copper rod for full fusion welding of deoxidised copper sheet. The finished weld is free from porosity and copper oxide inclusions. Suitable for use in the oxy/acetylene brazing process (use SIFSILCOPPER flux). Suitable for use in shipbuilding, repair and maintenance, the brewing, offshore, and process industries. It exhibits a viscous weld pool and is typically best used on oxygen-free copper types. A pre-heat may be required on material thicknesses of 73mm (to a maximum of 60°c).