Four powder coating Processes

Powder coating has gained popularity for the last five years, and today it is one of the most common methods used to finish automotive parts. When the process is done correctly, it results in durable, long lasting, smooth surfaces free from corrosion. For if you are interested in carrying out the powder coating process to your car or motorbike, read this article to know how the process is carried out. It involves four major processes; preparation, powder-coating ingredients, powder coating application, and curing.

First lets start with a house hold object. The process of powered coating is very similar that of a laser printer. Specifically a powdered toner is released from it's cartidge onto the printer drum. The drum presses this onto the paper or canvas. A fuser then melts the powdered toner on to the paper. As you read on you will see how similar this process is to powered coating.

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To achieve the best finish with powder coating, the surfaces must be adequately prepared; however, preparations depend on the base materials such as fiberglass and metals. Preparation involves cleaning the parts to remove oils and grease on the surfaces. Etching is also necessary as it helps to remove surface oxides to provide more surface area for powder coating to stick better. After etching, the surface part is thoroughly rinsed. Then it is dipped in chemical solutions for neutralization. The chemicals adhere to the surface providing film needed for a powder to stick. 

Powder coating ingredients

When the part is fully prepared for coating, the coat is applied. Manufacturers use a special blend of polymer resin. Besides, they use curatives, pigments, and additives aimed at creating a variety of colors. All the ingredients are melted and blended to form a uniform mixture cooled to bricks. 

Powder coating application

Here specialized tools are used, and the powder is placed inside the paint gun that uses electricity to produce charges. The part being coated is grounded aimed at providing an opposite charge that will attract sprayed particles. 


When the part is coated completely, it's placed in an oven at 160 degrees Celsius heat. The powder melts and flows, forming chemical chains that give the coating durability and rigidity. When it cools, surfaces take gel-like consistency until they reach room temperature and they are completely cured. 

How does it work?

Powder coating is applied in two renowned methods; electrostatic spraying and fluidized bed. The methods apply the powder coating by use of a special gun that gives the powder electrostatic charges. The charges make the powder to stick on the surfaces. When heat is applied, it melts the powder to the surfaces of the parts immediately. This ensures that powder coating works effectively. 

In summary, powder coating involves four key processes; preparation, Powder coating ingredients, Powder coating application, and curing. Besides, a special gun and heat are necessary.