Tailored Coating Systems

We are the largest custom coater in all of Colorado. We have also got some of the largest part capacities. Our biggest oven is a massive 12′ x 12′ x 35′ and our booths are even larger. We have plenty of room to spray all your parts. Many years ago, we realized that pretreatment is critical to long-lasting coatings, which is why we now offer iron phosphate and / or media blasting before the coating is applied.

While some customers prefer iron phosphate, others swear by blasting, and some need both to ensure they get complete corrosion protection and adhesion. We can tailor each coating so it exceeds your requested warranty (which can range from 1 – 10+ years).

With tens of thousands of pounds of powder in stock (all inventoried in our computer system), we’re able to keep track of things down to the pound and set minimum order quantities. We ensure that we’ll never run out of powder in the middle of a project.

Click on the links below to learn more:

The Efficient Iron Phosphate Process

Our iron phosphate wash bay contains a cutting-edge recycling and filtration system, which means that we use a very small amount of chemicals, save a huge amount of money on water, and are officially a Zero Discharge coater. What this means is simple – we’re not flushing our wash bay water down the drain.

First, we filter the water down to five microns and take three chemical readings every day to make sure each part gets the proper surface treatment before the coating process begins.

Here’s a brief explanation of how iron phosphate ensures complete adhesion to all your parts:

  • In an iron phosphate solution, the metal surface will be etched, which releases some iron into the bath. The surface becomes positively charged when metal ions are etched from the part surface. At this point, the metal ions in the bath will be converted to iron phosphate (negatively charged). A pH rise occurs at the interface of the solution and the part, leading the iron phosphate ions to deposit an amorphous coating on the surface
  • The acid salt content, type, and amount of accelerator (and the type and amount of acid etchants) varies from one compound to another. These compositions are all relatively acidic. While crystal site activators are not typically required prior to iron phosphate coating applications, formulations commonly contain oxidizers and / or accelerators
  • Nitrite or chlorate (oxidizers) acts to initially attack ferrous parts, providing the iron for the iron phosphate coating. Accelerators (molybdate or vanadate) provide active sites for iron phosphate deposition. Your choice of oxidizer or accelerator in a particular product may affect the performance or appearance of the final coating
  • If you have any parts that are made from clean steel, they can be iron phosphated before coating. If your parts have heavy mill scale, rust, or other coatings, they’ll have to be blasted before coating


Discharge Coater

Call Premium Powder Coating to find out exactly what powder we have in stock.


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