Few important things to know about epoxy powder coating



In general a coating is applied to provide protection to the substrate and improve its aesthetic.

Conventional Powder Coating became a reality in early fifties of last Century. It took almost another 40 years to develop Fusion Bonded Epoxy Powder coating technology which appeared to be much more superior to Conventional Powder Coating as far as corrosion and wear resistance of the coating is concerned.


Fusion Bonded Epoxy Powder Coating (FBE) is used to give a protective coating layer on metal surfaces like Pipes, Fittings, Valves, Rebar etc, the coating formed after fusion of the dry powder on hot metal parts has unique resistance to corrosion , chemicals with excellent mechanical strength. The FBE Coating film provides hydrophobicity and the chloride permeability of the film is exceptionally low thus making it suitable for use in contact with Drinking Water / Sewerage application and coating of Rebar which are used in concretes.

FBE Powder is applied on metal substrate by processes as described in the following part of this blog.


The electrostatic spray deposition is the most common procedure for applying FBE Coatings. In this process the FBE Powder is loaded in to the hopper of the spray gun. The Powder particles get electrostaticaly charged when ejaculate out of the spray gun and falls on preheated substrates. On deposition the particles get fused to the substrate and form a coating. The coating thickness is controlled by adjusting distance between gun and objects, air pressure of the Venturi Pump which sucks the powder from the hopper.

Another process known as Fluidized Bed Dipping is also employed by many coaters of Valves and Fittings. In this process the preheated objects are dipped into the fluidized bed of FBE Powder for few seconds then taken out of the bed and are allowed to come to ambient temp or if required post heating is done to achieve more than 98% curing of the film. This process is faster and is suitable for coating of irregular shaped objects. However, in this process Thickness is normally high and is controlled by adjusting dipping time.

Now to find out which type of FBE Powder and the application process suits your end use please feel free to contact experts of PAR FERRO COATINGS (P) LTD, who are having years of experience in all types of Powder Coating manufacture and application.

Visit Par Ferro website www.parferro.com today.
Fusion Bonded Epoxy Powder RAL 5017 is 'REACH' Compliant And Has International Approvals For Coating of Drinking Water Pipe Lines, Valves And Fittings
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