1.A technique of spraying in which the material being sprayed is given a high electrical charge, while the test piece is grounded.
2. A procedure used in painting which uses the particle-attracting property of electrostatic charges.

The direct current of about 100,000 volts is applied to a grid of wires through which the paint is sprayed to charge each particle and the metal objects to be sprayed are connected to the opposite terminal of the high-voltage circuit, so they attract the particles of paint.