Powder Coating- What is it and what are its properties

Posted by Lee Jinseong on November 23rd, 2015

Powder coating is defined as a method in which free-flowing and dry powder is used for coating purpose. There is a big difference between powder coating and conventional pattern of liquid paint spraying and it is that for powder coating, no kind of solvent is actually required. As it is the case for conventional type of painting, a kind of solvent is indispensable to help support binder as well as filter parts in a very unique suspension form. For powder coating, the paint is sprayed which is allowed to be applied electrostatically and is then allowed to cure under proper heat so as to let it form like a skin.

This type of powder used for powder coating is defined as thermoset polymer or thermoplastic. Today, many Korean companies have emerged in this field manufacturing electrostatic powder coating machine in Korea. Nevertheless, to get access to the best company, you have to look forward to Sooho Coating Machine Industrial Co., also recognized as powder coating equipment manufacturer in Korea. The company is known for supplying most unmatched manual powder coating spray gun in Korea.

If you want to know more about powder coating, then read the following.

Powder coating is meant to create a very hard finish that can get tougher than conventional paint. Take a look at materials for which powder coating is used:

  • Household appliances
  • Metals
  • Drum hardware
  • Aluminium extrusions
  • Bicycle and automobile parts, and so on.

With advent of newer technologies, the use of powder coating can now be used for various materials, of which MDF or medium-density fibreboard is one that deserves mention. Here, have a look at the properties of powder coating:

Properties of Powder Coating

  • Unlike conventional coating patterns, powder coating does not have any liquid carrier and so they tend to produce much thicker coatings without rendering any scope for sagging, etc.
  • Powder coating also helps to produce minimal difference in appearance caused on vertically coated surface or horizontally coated surface.
  • The biggest advantage of powder coating is that it does emits the least volatile organic compounds.
  • Also, with powder coating it is feasible to apply several powder colours that are applied before curing them in one stack. This means the colour is allowed to blend so as to create special effects in a single layer, very unlikely of traditional coating method.
  • Mostly, powder coating has range between 30 to 50 μm, melting temperature 150 degree Celsius, softening temperature Tg at 80 degree Celsius and much more.
  • Remember the surface texture that you want to attain should be acceptable or desirable and it is feasible with powder coating.
  • Many prefer to have certain amount of orange peel in the powder so as to hide all metal defects on any surface.
  • Certain specialized operations witness powder coating which is of 30 micrometers and that are meant to produce highly thin films.

Therefore, powder coating has many properties and you should know it before buying one

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Lee Jinseong

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Lee Jinseong
Joined: October 27th, 2015
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