What Is Powder Coating? 7 Things to Know

Straight from the ProsWhat Is Powder Coating? 7 Things to KnowYou probably should be powder coating everything

By Lindsey Mather and Katherine McLaughlin

March 22, 2022

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If you love these blue powder-coated chairs, it’s time to learn more about powder coating.Photo: Christina Wedge

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Do you have a local powder coating professional saved in your contacts? Painter and design aficionado Angela Chrusciaki Blehm does, and her psychedelic home in Gainesville, Georgia, makes a solid case for why everyone should follow suit. Her golden-yellow chandelier, cobalt-blue dining chairs, and cherry-red bed frame are major scene-stealers in their respective rooms, but they didn’t always look so snazzy. Powder coating for the win. “I love the uniform thick coating—it feels professional, I don’t have to worry about nicks and scratches, and I love how easy it is to keep clean. And the intense, shiny color is just so beautiful to me,” says Angela. Here, she shares everything you need to know about the process so you can learn how to powder coat yourself.

What is powder coating?

You may be curious about colors and outcomes, but it’s all just gibberish if you don’t know what powder coating is. So, let’s start at the beginning. What is powder coating?

Powder coating is a dry finishing process generally used to coat or finish metals. The keyword here is “dry,” and in laymen’s terms, the process could be explained as a non-wet alternative to spray paint. There’s a lot of science behind the powder-coating process, but essentially, dry powder, similar to baking flour, is electrostatically applied to a metal surface, then cured under ultraviolet light or heat.

The application process requires a spray gun that applies an electrostatic charge to the powder, which is then attracted to the metal object that’s being coated. The powder itself is usually based on a polymer resin system—which basically means it hardens through curing—and is combined with leveling agents, pigments, flow modifiers, and other additives.

Though powder coating could be applied, in theory, to any metal, it’s particularly common in the automotive industry, often for car wheels, in household appliances, bicycles, and other hardware.

Why choose powder coating over spray painting?

Powder coating may sound a little complicated, so it begs the question, why should you do it? The simple answer is that powder coating finishes often look better than other alternatives. Only powder coating can give you that high quality, super shiny, uniform wash of color.

A peek at Angela’s powder-coated bed frame.

Photo: Angela Blehm

Powder coating also means a much more durable finish, something that won’t chip or wear off over time. “The coating is heat-cured, resulting in a final product that is smooth and thick—spray painting doesn’t even compare,” Angela explains. “Powder coating is especially important for metal items used outside because of its durability.”

Even if you’re not a fan of color, let us introduce you to clear coat powder coating. It’s exactly what it sounds like, and you can get a clear powder coating done to add durability and protection to your appliances without vibrancy, if that’s your vibe.

And don’t worry, spray painting isn’t totally out of the picture. “I would still use spray paint for small, non-metal, interior projects,” Angela says. For anything big, that may get a lot of use, powder coating is usually the way to go.

What you should powder coat

As Angela already said, stick with metal pieces. Other than that, pretty much anything is fair game. “I love to use powder coating to customize new and vintage items alike,” she notes. “Some of my favorite projects are our vintage guest room bed in red, our new aluminum kitchen chairs in blue, a yellow metal chandelier, and sink and shower faucets in neon pink.”

Is powder coating DIY friendly?

Yep, that hot-pink faucet is powder-coated.

Photo: Angela Blehm

We like to think that with the right preparation and tools, anything is DIY-able. However, be aware that the upfront cost for powder-coating supplies can be high and might not be worth the expense if you’re only looking to finish a few things. Powder coating guns can start at a couple of hundreds of dollars and that doesn’t often cover the cost of other supplies like air compressors, the heat source, or the powder itself.

However, if powder coating is your calling and you’re ready to finish everything from your appliances down to leftover scraps of sheet metal, there are a few things you’ll want to keep in mind. Before blasting your powder, make sure you’ve done the appropriate prep. Pre-treatment usually involves cleaning whatever you’re coating thoroughly with a degreaser or phosphate rinse. Good prep will make all the difference in adhesion later on in the process.

You’ll also want to make sure you’ve researched what type of powder and finish will work best for your project and that you have the appropriate space for the curing process. The Powder Coating Institute offers various training and education programs for anyone looking to get into the powder coating game.

What to expect when you powder coat

Depending on where you live, color options could be limited. “My local shop carries a limited selection of paint colors—I usually find something that works,” Angela says. “There is a wider range of colors that can be custom-ordered, but it is usually more expensive.”

If you’re getting a professional to powder coat something for you, point out any parts you don’t want powder coated so they can mask those. Also, beware: If your item is especially dirty, they might need to do some sandblasting prior to powder coating (and this will cost extra). Timing may also vary, but try to give your project plenty of lead time just in case. “My experience with my shop has been as quick as a few days or up to two weeks if they are really busy,” Angela says.

How to find a powder coater in your neighborhood

If you’re in need of powder coating services, take a page out of Angela’s book and do a simple Google search. She found her powder coater on the search engine—“I found a large operation in my small city, so lucky!”—but FYI, the Powder Coating Institute has a handy search function as well for all of your coating needs. Just make sure you get testimonials or check out previous projects before moving forward.

How much it’ll cost you

According to HomeAdvisor, the typical price range for a powder-coating project is $335–$888. Angela’s local powder-coater has a $150 minimum. “The more pieces I can do at a time, the better,” she says. “Larger projects like a king-size bed or multiple chairs can be up to $300 or $600.” If price is a concern, shop around with different providers before making any decisions; many will be able to offer free quotes so you can find the best powder coater that fits your needs and budget.

Whatever you end up spending, the cost is 100 percent worth it in Angela’s eyes. “I think it is quite comparable to the costs of other custom services like reupholstery and hiring out interior painting,” she says. “It also seems quite affordable when you weigh out its effectiveness and longtime durability.”

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