Abstract: An arc spray gun has a high pressure air nozzle. To the front of the air nozzle are two wire guides. A suitable metallic wire extends through each metallic guide. An electrical potential is placed through each wire within the nozzle wire guide. As the wire is heated by the electrical potential beyond its melting point, high pressure air is ejected from the air nozzle, atomizes the metal wire, and blows a metallic spray forward. A nozzle housing is within the path of the spray. The nozzle housing has two frusto-conical sleeves coaligned to direct the flow of the metal spray. An orifice plate is positioned in the path of the metal spray. The orifice plate has a plurality of fine apertures extending through another portion thereof, and in its center portion has a plurality of larger apertures extending therethrough. The atomized metallic spray passes through the two sleeves and the orifice plate.