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What is Powder Coating?

Powder coating is a type of coating that is applies as a free-flowing, dry powder. The coating is typically applied electro-statically and is then cured under heat to allow it to flow and form a "skin". It is usually used to create a hard finish that is tougher than conventional paint. Powder coating is mainly used for coating of metals as the temperature required to melt and set the powder ranges from 265 to 425 degrees Fahrenheit.


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

  • 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 over-spray can be recycled and thus it is possible to achieve nearly 100% use of the coating.

  • Powder coating production lines produce less hazardous waste than conventional liquid coatings.

  • Capital equipment and operating costs for a powder line are generally less than for conventional liquid lines.

  • Powder coated items generally have fewer appearance differences between horizontally coated surfaces and vertically coated surfaces than liquid coated items.

  • A wide range of specialty effects is easily accomplished which would be impossible to achieve with other coating processes.

  • While powder coatings have many advantages over other coating processes, there are some disadvantages to the technology.