Arc spraying is used as a source for the thermal energy electricity. Two electricity conducting wires are melted in an electric arc and sprayed onto the prepared component using a propellant gas such as compressed air (kinetic energy). The electrical arc is created between the two wire tips through contact ignition. Due to the high spraying rates, this technology is primarily used in corrosion protection of large components with zinc and aluminium. Arc spraying is an efficient wire spraying process but can only be employed with electro conductive materials. The process temperature is
> 4,000 °C and the particle velocity reaches approximately 150 m/s.