Here's How Powder Coating Works
Posted by RustyLions on June 6th, 2020
Powder coating is a dry coating method used to create a durable finish and is more widely used for metals-aluminum products, vehicles, and even motorcycle parts. It offers a protective coat that is tougher and stronger than traditional wet paint.
Preparation is a significant factor in the powder coating process, as any foreign debris will ruin the finished product. Cleaning is done through a variety of methods, depending on the surface, and usually depends on the size of the material and the type of debris.
Generally, cleaning is done through a chemical or mechanical process. Although chemical processes typically make use of chromates (which is hazardous to the environment), other means have recently been developed to avoid the use of these chemicals.
The cleaning process is intended as a pre-treatment that removes foreign elements and improves the bonding between the powder and the material. There are several methods of powder coating.
Typically powder coating is applied to metal through an electrostatic gun (or Corona Gun). The powder is charged positively and then sprayed onto the metal (which is grounded).
The charged powder is then sprayed out; the electrostatic charge literally pulls it onto the metal. After the metal is coated, it is heated, which melts the powder into a robust protective shell on to the surface.
The process of heating the powder to the melting point is called cross-linking. The powder melts and then chemically reacts to form an even stronger compound than its original form. This process requires a particular temperature and set amount of time to be successful and create a full bond to the metal.
Rustylions Powder coating is recognized for formulating the highest quality powder coating services, we specialize in powder coat, sandblasting, cerakote for high temp applications, paint, and similar services.
Rusty Lions is the best powder coater that offers both fluidized beds (dip) options and spray parts capability. We provide certified color formulations for all standard colors in our spectrophotometer, or we can match accurately to any color sample. For more information, contact Rusty Lions at 347-613-8103 / 973-459-8515.Also See: Powder Coating, Temp Applications, Rusty Lions, Powder Coat, Powder, Coating, Metal