By Larry Foster


Powder coating is used to refer to a dry finishing method that is recently gaining a lot of popularity. This process utilizes powder materials which are made up of pigmented thermoplastic particles. Currently in the industrial finishing market, this process makes up 15 percent of the entire process. This process is growing at a very high rate such it is expected to grow even more. When in need of Powder Coating Langley BC should be visited.

This method is performed by electrostatically applying powders onto components that need to be coated. The application is done using a sprayer. Sprayers usually have various nozzles meant to achieve different effects in the application. The powders cling onto the component until they are fused during the curing process. Once cured, the powders melt and form a fine and smooth coat that can last for many years.

Powder coats perform well when coated on clean surfaces. This enables the bond between the powders and the surface to be strong. Sandblasting is the most used method for cleaning and preparing surfaces. With this cleaning method, different materials like oil and paint are removed. To avoid corrosion, degreasing can be applied. Other surface cleaning methods also exist.

Different materials are used to make powder coatings. They include polyurethane, fluoropolymer, thermoset, and epoxy materials. Since varying materials are applied in making powders, powders are different in their natures. When the comparison is made between thermoset and thermoplastics powders, the level of resistance to heat is higher in thermoset powders. The reason is that cross-linked polymeric resins are applied in making them. To cure or set, resins demand heat or pressure.

Fluoropolymer, thermosets and thermoplastics have the same structure. These powders also have the same mechanical traits. On the other hand, fluoropolymers have the best resistance to solvents, bases and acids. A better bonding with surfaces made of plastic is offered by polyurethane. The curing process needs to however be initiated by heat, air evaporation or a catalyst. Curing in polyurethane powders cannot take place in the absence of the above agents.

When talking about durability, very few finishing techniques rival powder coating. This method is used to offer protection to the toughest, roughest machinery meant for industrial and commercial applications. At the same time, it is used to coat household items that people use on a daily basis. Some of the household items it is used to coat include stoves, utensils, cutlery, and equipment among others.

The advantage of powder coating is that it offers durability that liquid paints cannot match, but at the same time, it also offers a lot of beauty. The finish is attractive and can improve the aesthetic value of a surface or object on which it is applied significantly. The finish does not undergo diminished coating quality as a result of chemical corrosion, ultraviolet light, impact, and moisture among other factors.

Powder coating offers high levels of resistance thus the coating has the ability to withstand fading, scratches, corrosion and cuts. This makes the quality of the coating to last for a long period of time. When uses this finishing method, it is very economical since one saves on the costs needed to do finishing after a couple of years.




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