In electrostatic painting, the atomized paint droplets pick up an excess of electrons, becoming negatively charged. The part to be painted is electrically neutral, making the part positive in respect to the negative paint droplets. The opposite charges set up an electrostatic attraction between the charged droplets of paint and the part to be painted. This process is particularly effective when painting mesh, rods, or cylinders as the paint will wrap around the part and coat the whole part while painting from one side.
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