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Electrostatic coating is a manufacturing process that employs charged particles to more efficiently paint a workpiece. Paint, in the form of either powdered particles or atomized liquid, is initially projected towards a conductive workpiece using normal spraying methods, and is then accelerated toward the workpiece by a powerful electrostatic charge.

A recent addition to the electrostatic coating (or e-coating) process is in the form of dipping an electrically conductive part into a tank of paint that is then electrostatically charged. The ionic bond of the paint to the metal creates the paint coating, in which its thickness is directly proportional to the length of time the parts are left in the tank and the time the charge remains active. Once the parts are removed from the paint tank, they are rinsed off to remove any residual paint that is not ionically bonded, leaving a thin film of electrostatically bonded paint on the surface of the part.

Process Characteristics

  • Uses a high voltage electrostatic charge which is applied to both the workpiece and the sprayer mechanism
  • Is incredibly efficient, using 95% of sprayed paint due to reduced over-spray and better wrap-around
  • Paint materials can be either powdered or liquid
  • Process can be either automatic or manual
  • Workpieces must be conductive
  • The  paint adheres extremely well and is difficult to remove without aggressive means of removal.



Find Your Color

Make sure to consider the balance between light colors and deep colors. Choosing a color scheme and how complex you wish it to be. The three main color schemes to choose from are Monochromatic, Analogous, and Complementary.products & brands


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