This alloy is EXCELLENT for hobbyists and less skillful welders. This wire is specifically formulated to produce sound welds on galvanized in all positions. Low penetration characteristics make this an excellent choice for thin gauge steels, as well as sheet metals. The arc is smooth and quiet with virtually no spatter. Ideal for use on small, single phase welders in the 130-190 amp rage. Especially suited for outdoor welding, as no gas shielding is required. 71T-GS is a gasless wire for galvanized and aluminized steels.