APS (Atmospheric Plasma Spraying) is based on introducing the raw material in the form of particles inside a plasma jet, accelerating and fusing them.

This process is based on the creation of a plasma environment, formed by the dissociation and ionisation of gases by a high-powered electric arc (around 80KW), established between a cathode and a tubular anode. The gas flow generated reaches high speeds of around 1,000 m/s. When the gases leave the torch, they tend to return to their normal energy state, causing a highly exothermic reaction when they reassociate.