This Nickel cored rod has a specially formulated coating that gives a pulsed arc for low temperature welding of cast irons. When properly applied, the arc will penetrate surface skin and contaminants to produce a porosity free weld. The heat affected zone is not hardened and stress cracks are almost always avoided. Use for low temperature welding of cast iron in all positions, joining cast iron to steel, iron, stainless steel, copper, Monel, etc., as well as on engine blocks, gear housing and machine bases. Also ideal for filling holes and building up worn or missing sections which must be machined to final dimension after welding.