What is a Electrostatic coating machine?

The electrostatic coating machine is a mass-produced coating equipment that performs electrostatic coating, and is a coating method that uses high-voltage direct current. The history of electrostatic coating itself is said to have started in the 1930s. Compared to atomized paint, which sprays paint with a mist, dipping, which is dipped in paint, and push-type paint, which is painted with a roll or brush, less paint is required and no air bubbles are generated, so pinholes with paint film defects do not occur. However, since dust and dirt are attracted by static electricity, you must be careful about paint film defects called "dust and lumps". You also need to be careful about fires because you use electricity.

Application of Electrostatic coating machine

The electrostatic coating machine is used not only for mass-produced general products but also for industrial products such as automobile painting because it can efficiently form a coating film on the target. Electrostatic coating simplifies the process by causing paint wraparound, which is not possible with atomized coating. It has the advantage of being able to be painted even in areas such as corners where there is no place for compressed air to escape. While a uniform coating film is formed, it has the disadvantage that the paint concentrates on the convex parts where the electric field is concentrated. It is more suitable for organic solvent-based paints than water-based paints because it uses electric current.

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