Electric arc wire spray system uses only electricity and atomized air to deposit metallic coatings.
In Wire arc spray system, two metallic wires are fed into a "gun" where they are electrically charged with opposing polarity and directed together to create an arc. The resulting heat (Nearly 4,000°C) melts the metallic wire, forming droplets that are propelled (Particle velocity will be up to 150 m/s) by compressed air or gas onto the work piece surface to form the coating.
Powder/wire/Rod Flame Spray System:
The main advantage of Powder flame spray over the wire flame spray is that a much wider range of materials can be easily processed into powder form giving a larger choice of coatings such as metals, alloys, carbides, polymers and ceramic powders.