Abstract: Thermal spraying method and apparatus for depositing a coating onto a substrate by introducing material to be coated directly within the arc discharge area and by establishing a stable laminar plasma stream. By choosing particular parameters of the spraying method, namely electrical parameters and rate of ionizable fluid, required for establishment of plasma arc there is possible to enable efficient melting of material and conveying thereof toward the surface to be coated without spreading outside and before it is evacuated toward said substrate.