Weld Mold 705 description: Primarily used for underlaying on all types of iron draw dies, including gray, nodular, ductile and special cast alloys. Also used for joining steel to iron where high strength is required as encountered when die inserts are installed. Use for heavy buildup and underlays prior to surfacing with a harder alloy. Exceptional results are realized when welding cracked high alloy tool steel dies and other high carbon alloy steels.