What Is a Powder Coating Machine?

Apr 9,2011

A powder coating machine is a device that applies protective coatings on metal parts similar in finish to conventional liquid paint. The main difference between the two processes is the method by which the coating is applied. In the case of powder coating, a stream of positively charged powder is applied to a grounded or negatively charged metal surface. This electrostatic method creates a better coating to metal bond than is possible with conventional paints as well as offering several other benefits not possible with liquid coatings. There are several different powder coating machine types in general use with the most common being the corona and tribo spray gun variants.

Powder coating is the process of coating metal items with layers of powderedthermoplastic or thermoset polymer. The process is an efficient and highly effective method of coating a wide variety of consumer products ranging from domestic appliances to garden furniture. These finishes are applied with several different powder coating machine types including spraying, electrostatic disc, electrostatic magnetic brush, and fluidized bed systems. Of these, the spray types are the most widely found in most commercial applications. The corona and tribo spray coating machines see the most use.

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