A Guide to Powder Coating

applying yellow powder coating for steel

The powder coating process: The basics

Powder coatings are one of the hardest working coatings in the industry. With applications ranging from consumer goods like fridges to hard-wearing machinery and pipelines, powder coating is a billion-dollar industry. Whether your substrate is metal, plastics, wood, or MDF, a powder coating will provide extreme durability with an attractive finish.

The powder coating process can be broken down into 3 basic steps:

  1. Substrate preparation/pre-treatment
  2. Powder application
  3. Curing

As the name suggests, powder coating is applied to a substrate in a dry powder form. The most common method of application uses an electrostatic spray gun, which applies an electric charge to the powder. When sprayed at a grounded substrate, the powder will accelerate towards it and the electric attraction is what causes it to stick. The piece is then put into an oven for the powder to cure; the heat causes the powder to melt and chemically react, creating a uniform film which is tightly connected and resistant to breakdown. A powder coat can also be applied by dipping the substrate into a fluidized bed of aerated powder.

Top 5 reasons to choose for powder coating

Powder coating is already a billions-of-dollars-a-year business, and is only getting bigger.  Here are 5 reasons why:

Powder coating comes in many different decorative finishes

Powder coating produces minimal waste, as excess powder can be reused.

  1. Durability: It is more resistant to chipping, scratching, fading, and wearing than liquid coatings.
  2. Appearance: Unlimited color and finish choice (including gloss, matt, iridescent, glitter, and candy)
  3. Cost efficiency: It is cheaper than liquid paint, and with minimal to no wastage. Plus it is very long-lasting, and has a short cure time.
  4. Flexibility: Suitable for a wide range of materials, and purposes.
  5. Environmentally friendly: Solvent-free, very low/zero VOC, and excess powder can be recovered and reused, so minimal waste.

Choose powder coating for protection – not just looks

While the range of finishes may be dazzling, the real advantage of powder coatings is their physical properties. It is highly resistant to physical damage through chipping, flaking, scratching or abrasion. It is also resistant to chemicals, corrosion and weather. When applied is does not drip or sag and is thicker than most paints, reducing the need for layers. It is also very low maintenance after application. These are just some of the reasons why powder coating is trusted across industries; it has been for long the go-to coating for electrical appliances and is becoming more and more used in the automotive industry, and even furniture manufacturing benefits from it. A powder coating consultant will give you the information and advice you need to make the right choice for your project.

Get in touch with a powder coating specialist in the US

With powder coating being such a big business, it is no surprise that there are several companies and manufacturers operating in the US, including AkzoNobel, Valspar and Axalta. For a cost breakdown of powder coat treatments as well as equipment, visit our pricing page. For powder coating consultants, contractors and specialist applicators, please check out our regional guides:

If you require any additional information on powder coatings, consultants, contractors, equipment or manufacturers, do not hesitate to contact us. Our experts are here to help! Simply use the button below and tell us a little about your project to get the ball rolling -our quotation service is 100% free. In collaboration with our coating partners, we will connect you with the coating solution for your needs.

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