There are a few cases in the metal and steel world where a given process helps add to properties that were already present in a metal, and the use of powder coating on stainless steel products is a good example. Can you powder coat stainless steel? You can, though there are only certain cases where doing so makes sense and will be worth the cost. 

At Wasatch Steel, we’re happy to provide a wide range of steel supply services to clients around Salt Lake City and other parts of Utah, offering discount steel sheet, steel tube and more in various varieties, including stainless steel. Here are some basics on what powder coating is, why many stainless steel applications don’t typically require it due to properties the steel already possessed, and some settings where powder coating will show great benefit for stainless steel.

What is Powder Coating?

For those who are just learning about powder coating, it’s a process that involves applying a dry powder to a metal surface and then curing the coating onto the surface using heat. The result is a durable and protective finish that can resist chipping, scratching, and other types of damage.

This dry powder is typically made up of finely ground particles of pigment and resin, which are electrostatically sprayed onto the metal surface. Once applied, the coated metal piece is heated in an oven to melt and cure the coating, resulting in a smooth and even finish.

Why Stainless Steel Doesn’t Usually Need Powder Coating

Stainless steel is known for its natural resistance to corrosion, making it a popular choice for applications where durability and hygiene are important, such as in the food and medical industries. This corrosion resistance is due to the presence of chromium in stainless steel, which forms a protective layer on the surface of the metal when exposed to oxygen.

Additionally, stainless steel has a sleek and modern appearance that many prefer without any extra coatings or finishes. However, there are certain cases where powder coating can enhance the properties of stainless steel.

When Powder Coating Can Be Beneficial

There are a few stainless steel settings in which powder coating can be beneficial, however, including:

• Adding further corrosion resistance: While stainless steel is heavily resistant to corrosion, it is not completely corrosion-proof. In highly corrosive environments, such as chemical processing plants or marine applications, adding a powder coating can provide an extra layer of protection.

• Adding color: While many stainless steel products are used in their natural shiny silver state, there may be instances where color is desired. Powder coating can provide a wide range of colors to choose from and can also help protect the stainless steel surface from fading due to exposure to sunlight.

• Enhancing durability: In settings where stainless steel may be exposed to heavy wear and tear, such as outdoor furniture or equipment, powder coating can provide an extra layer of durability and protection.

Common Applications of Powder Coated Stainless Steel

Due to the above benefits, here are some settings where it’s common to see powder coating applied to stainless steel:

• Chlorinated water: In pools and other water treatment systems, powder coated stainless steel is often used for its added resistance to chlorine.

• Food processing equipment: In food production facilities, stainless steel equipment is often powder coated to provide an extra layer of hygiene and corrosion resistance.

• Outdoor furniture: Powder coating can help protect stainless steel furniture from exposure to the elements and heavy use.

• Workshops: In industrial settings, powder coated stainless steel is commonly used for workbenches, shelving and other equipment that may be exposed to chemicals and harsh conditions.

• Railings: Powder coated stainless steel railings are often used in public spaces, as the powder coating can provide both a colorful and durable finish.

Alternatives to Powder Coating

In certain settings, a couple of alternatives to powder coating may be used on stainless steel:

• Paint: While not as durable as powder coating, paint can be applied to stainless steel for color and protection.

• IronArmor: This is a new type of coating designed specifically for outdoor metals, providing enhanced durability and corrosion resistance without the use of powders.

While powder coating may not always be necessary for stainless steel, it can provide added benefits in certain settings. When considering whether to powder coat stainless steel products, factors such as the environment and desired appearance should be taken into account. 

At Wasatch Steel, we offer a variety of stainless steel products to clients around Salt Lake City and other parts of Utah. Contact us today for all your stainless steel needs, and we’ll be happy to discuss the best finishing options for your specific application.