ROD WELDING DC ALUM 1/8IN .5LBow alloy aluminum. Excellent for cast, wrought and extruded aluminum in all positions. Can also be used as a torch brazing alloy. Typical applications include truck beds, loading ramps and docks, banisters, stairs, diamond plate, irrigation piping, engine blocks, transmission housings and railroad frogs. Recommended Polarity: DC Reverse. Weight Lbs. (Kg): .5 (.22). Amperage: 70-120.