The PPA 571 coating protect metal fencing from corrosion for 15 years

History of Corrosion Prevention Coat Called Powder Coating

Posted on: December 22nd, 2016 by byersbushblog

Powder coating is one of the widely used processes in various industries today.  It has provided a more environment friendly solution to creating a beautiful and durable finish in cars, appliances, and buildings among others.  But, do you know how this process found its way into modern usage?  Let’s take a look at the history of powder coating.

Its Beginnings

Would you believe that powder coating first came about during the 1940s?  It was the result of the European finishing and coating industry coming under pressure to deliver a process and dry coating that would be friendlier to the environment.  The coating method used at the time involved flame spraying using flammable gases to generate enough heat that would melt the coating for the material.

Dr. Erwin Gemmer found a way for the bed application to be fluidized, making it possible for use with thermoplastic resins on metal.  This was definitely a more efficient way of coating compared to flame spraying.  Between the periods of 1958 to 1965, almost all powder coating processes made used of fluidized bed.  Majority of the processes were by nature functional resulting in the creation of film that has an acceptable thickness of 6 to 20 mils.

The thick film were usually applied to electrical insulations including abrasion and corrosion resistance methods.  The coating materials were made of CAB, plasticized PVC, nylon 11, polyethylene, chlorinated polyether, polyester, and other materials.

For the next 40 years the powder coating process would experience dramatic improvements in terms of application and efficiency with the introduction of the powder coating oven.  During the 1980s the use of the powder coating oven had almost dominated application processes and led to the innovative advancements in resin and powder coating procedures by yielding decreased waste, better efficiency, and lower operation costs.

Responding to the Market

With the continuous innovation experienced by the powder coating method and the emergence of the powder coating oven, the industry became more than equipped to deal with the various issues covering liquid finishing and respond to the market needs.

One of the main issues that was eventually resolved was the problem of finishes not lasting as long as desired to protect the materials.  The high costs, safety concerns, and pollution issues associated with traditional liquid finishing methods were no longer hounding the market.


With the use of various technologies and methods of applications that eventually became refined through the years of powder coating experience, even industry pioneers found a way to develop their own environmental friendly processes based on the technology.


During the latter part of the 1970s another unique application technique surfaced, but for some reason was never fully appreciated by the market.  This technique relied used epoxy-based slurry that would be sprayed on materials conventionally and baked.  The resulting coated film performed and looks much like those of the other powder coating methods.  However, the common complaint from the market was that the application of the powder slurry frequently clotted as it was being sprayed.  Even if proper adjustment and handling could easily overcome this process, it never became a market standard.


In the United States and Europe, fluidized beds were getting huge acceptance even as other application methods were making its way into the market.  Most of these new systems were intended for commercial usage.  The newer methods of powder coating allows for the treatment of new and used parts once they have been chemically cleaned and degreased.


So what was once put forth as a European solution to environmental pressures from major markets is now widely used and accepted as a suitable replacement for liquid finishing and has proven to advance the technology even further.


Contact Byers Bush now to learn on how proper powder coating can benefit you and get quality metal corrosion prevention coating to protect your valuable tools against rust attack.

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