Sold in 5-pound boxes, 1/8" Blue Demon E4043 is a general purpose aluminum electrode for arc welding aluminum alloys. The arc is stable and operates at low temperatures with a minimum of spatter and fuming.
E4043 is a great choice when welding heat-treated aluminum parts. The welds are strong, dense, and free of porosity on both production and maintenance applications. This welding rod may also be used in brazing applications.