The Electric Arc Wire Spray process uses two metallic wires, usually of the same composition, as the coating feedstock. The two wires are electrically charged with opposing polarity and are fed into the arc gun at matched, controlled speeds. When the wires are brought together at the contact point, the opposing charges on the wires create enough heat to continuously melt the tips of the wires. Compressed air is used to atomize the now molten material and accelerate it onto the workpiece surface to form the coating.

Process Basics

Heat Source	Plasma Arc
Material	Wire
Arc Temperature	approx. 4000 °C
Particle Velocity	approx. 150 m/s
Spray Performance	15 to 3300 g/min
Schematic Diagram

Process Features

• Excellent portability for on-site coatings
• Does not require any process water or gases except compressed air
• High spray rates

Typical Applications

Bridge deck	Transport pipes	Capacitor