What Is Powder Coating? Gate

Powder Coating

Powder coating is a dry coating, which is applied as a free-flowing, dry powder. Unlike a conventional liquid paint, powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. Each powder particle contains the necessary resin, pigment, modifiers and curing agent. The powder is applied directly to the surface of metals electrostatically, meaning the powder particles are charged. The charged powder sticks to the surface, the part is placed in the curing oven, and the powder melts, bonds and cures to the surface, forming a “skin.” The result is a uniform high quality finish.


Eco-friendly Process

Since there are no solvents, the entire powder coating process is environmentally friendly. There is no generation of hazardous waste, and no volatile compound emissions are released into the atmosphere.


Powder Coating Offers Superior Coverage

There are several advantages of powder coating over conventional liquid coatings including:

  • Powder coatings emit zero or near zero volatile organic compounds (VOC).
  • Powder coatings can produce much thicker coatings than conventional liquid coatings without running or sagging.
  • Powder coating overspray can be recycled; thus, it is possible to achieve nearly 100% utilization of the coating.
  • Powder coating production lines produce less hazardous waste than conventional liquid coatings.
  • Powder coated items generally have fewer appearance differences between horizontally coated surfaces and vertically coated surfaces.
  • Specialty effects, impossible to achieve with other processes, are easily accomplished.
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