· Cast iron repair with minimal or no pre-heat· Excellent for welding all cast irons· Welds copper to steel and stainless steel· Non-Carcinogenic· No nickel Suggested settings for Cast Iron Repair:DC Negative100 Amps100% Argon Shielding Gas2% Thoriated Tungsten with pointed tip General directions for use on cast iron repair:For best results use a sparing amount of acetone on a rag and wipe the rod prior to use. If thickness permits, you can “V” out the crack to expose the clean metal. Some TIG welders like to make a quick pass or 2 over the crack to give it a little preheat but also to burn out any grease or oil. Make a puddle with the tip and add filler by a dipping the wire in the puddle. When you complete the weld always leave the weld with a deposit of filler. If the process is not successful, use a magnet to verify that the casting is iron. BD-5000T-094-POPBlue Demon 5000T 3/32in x 18in pop pack TIG rod for cast iron repair (8 rods)lb652426009275.38 lbsinches19 1/4in1in1in