A method and apparatus are disclosed for the electrostatic spraying of powder on cloth, paper and the like. The powder is coated on nonconductive and porous cloth or paper or similar material by placing the material in the electric force lines (EF) generated between a corona pin (1) and its counterelectrode (2) on a powder spray gun or by passing the material through such lines. A positive or negative high voltage is passed to the corona pin and an inverse negative or positive high voltage is applied to the corresponding counterelectrode. The apparatus may include one or more corona pins and counterelectrodes provided on one or more gun nozzles. (3).