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How Does Powder Coating Work?

Powder coating is an effective way of applying paint to metal objects such as machinery, cars and pipework with less mess than traditional wet paint methods. Powder coating provides a thick, durable covering with a near flawless finish.

But how does it work?
Powder coating is based around magnetism and the fact that a positive charge is attracted to a negative charge. An electrode is applied to the metal that requires coating, and a small current runs through it in order to create a positive charge.

Within the spray gun, a central rod works in a similar way to give the powder a negative charge. Because each particle of the powder has the same negative charge, they are repelled away from each other as they leave the gun and spread apart as they travel through the air. This means that by the time the paint reaches the positively charged metal, it clings to the surface in a nice even layer.

All that remains is to heat the powder, usually in a giant industrial oven, to ensure that the paint powder melts in place to create a smooth, tough finish.

Here at PB Metal Finishing Services we design and manufacture state of the art powder coating equipment for the finishing industry. As experts in the field, we can help you in the early days of setting up a powder coating plant, not only with our high quality products but also with the benefits of 25 years of experience in the industry.

For help in finding the right finishing solution for your business, call 0121 522 3513 today to speak to a member of our helpful team.