Powder Coating

Powder coating is a type of coating that is applied as a free-flowing, dry powder. The main difference between a conventional liquid paint and a powder coating is that the powder coating does not require a solvent to keep the binder and filler parts in a liquid suspension form. The coating is typically applied electrostatically and is then cured under heat to allow it to flow and form a film. The powder may be a thermoplastic or a thermoset polymer. It is usually used to create a hard finish that is tougher than conventional paint. Powder coating is mainly used for coating of metals, such as household appliances, aluminium extrusions, drum hardware, and automobile and bicycle parts. Newer technologies allow other materials, such as MDF (medium-density-fiberboard), to be powder coated, using different methods.

The advantages of using powder coating:

  • Ecological industrial coating technology
  • The coating doesn’t use solvents, diluents, oil, nitro
  • High efficiency
  • The manual coating is much more easier, without leaks or surface flaws
  • Superior quality of the paint layer on the part
  • Very good impact resistance
  • Color stability and good gloss
  • Good resistance to yellowing caused by overbake
  • Very good mechanical properties
  • Depending on the type of powder coating: good resistance to salt spray and UV radiation
  • Good resistance to chemicals and organic solvents
  • Good resistance to water
  • Good adherence and corrosion resistance
  • Melt viscosity is high favoring a good cover on edges and corners
  • Good adherence on aluminum support
  • Low cost of the painted surface (aprox.65% of the cost of conventional paint application)
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