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Powder Coating Pretreatment

Our 8-Step Pretreatment Process

Pretreatment for Powder Coating Projects

Powder coating pretreatment cleans & seals products before powder application. Pretreatment is incredibly effective at removing impurities like oil and grease, eliminating the need for additional abrasives and saving both time and money.

Through different stages of the process, pretreatment seals products for extra protection and improved adhesion between the metal surface and the primer or powder coat. Don’t skip this crucial step – contact Keystone Koating to get the job done right!

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Powder Coating Pretreatment Ensures Quality Results

At Keystone Koating, our proprietary eight-stage powder coating pretreatment process exists in line with the rest of our processes for expedited completion. Our powder coating pretreatment process delivers excellent results and helps us meet strict specifications.

To minimize our impact on the environment and help you maintain green manufacturing processes, we use reclaimed rainwater and dispose of wastewater using eco-friendly evaporation methods. Our process, detailed below, is also entirely chrome-free.

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Keystone Koating’s 8-Step Pretreatment Process

The first step in our powder coating pretreatment process is a thorough alkaline wash to remove surface-level contaminants like liquids, dust and soil.

Products go through two rinses to remove cleaning agents from step one and ensure the removal of remaining surface debris.

We apply an ion phosphate solution that pickles the surface and forms a protective layer to resist corrosion and improve the strength of the bond.

In steps five and six of the powder coating pretreatment process, items go through additional rinses designed to remove all traces of ion phosphate solution from step four.

The reverse osmosis rinse washes the product in pure water to eliminate leftover chemicals and contaminants from earlier.

As a final step in the powder coating pretreatment process, we apply a dry-in-place, chrome-free zirconium seal and use advanced silane technology to strengthen the bond.

Once your products reach the end of our eight-stage powder coating pretreatment process, we’ll put them through immediate drying to prevent the onset of corrosion. Depending on your specifications, your items will then move to the next step in your customized powder coating process.

A close up of a Keystone Koating employee spraying blue powder on product Keystone Koating employee spraying super durable polyester powder in demanding environment

Take Advantage of Our Powder Coating Pretreatment

With the right powders and professional surface preparation from an established provider, you can get a powder coating finish made to last for years in the exact color, texture and thickness you want. 

Get a quote today, or send us a message for more information about our powder coating pretreatment process and other services.

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Our Powder Coating Solutions

We Have You Covered from Start to Finish

Along with our pretreatment specialization, we offer the full scope of powder coating services from start to finish. including priming, curing, quality testing, shipping, and more. Explore our other full-service powder coating capabilities below and see what Keystone Koating can do at our one-stop shop!

8 Stage Pretreatment

Before any large volume powder coating, make sure your products are clean and optimized with our eight-stage pretreatment system. This proprietary system also optimizes your products for high volume powder coating, using a chrome-free seal with zirconium applied and silane technology to improve the bond.

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Coating

Our high-volume powder coating services provide a fast application while ensuring a complete and even coat. We use a combination of manual and automatic sprayers depending on the profile of your item and adjust the electrical charge for maximum coverage.

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Blasting

If you have any previous coatings, corrosion, scale or other residues on the surface of your products, we will remove them fast — and without damaging your products — using high-performance abrasives blasting. Our sandblasting service provides metal scoring to create a stronger bond with your surface coat.

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Masking

If your items have holes, threads, machined parts or other spaces you want to cover during large volume powder coating, take advantage of our expert masking services. We mask your items by hand using efficient methods and professional masking products to ensure total protection.

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Primer

For steel and aluminum products intended for outdoor use, we recommend using a primer coat before proceeding with any large scale powder coating. Primer adds an extra layer of protection to your product and helps your finish coat look great up to four times longer than products without primer layers.

 

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Upgrading

To ensure your items are prepared to withstand the toughest climates, upgrade your custom powder coating process to include Super Durable polyester. Super Durable polyester powder coating offers great color and gloss retention, and will maintain a vibrant appearance under prolonged exposure to ultraviolet (UV) light.

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Curing

A proper cure relies on meeting several requirements. We adapt our curing process for item size, thickness and material as well as the powder coating type and millage. Our team calculates the correct bake time and temperature, and we monitor throughout to ensure climate stability.

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Quality Testing

After curing, all orders go through quality inspection before leaving the facility. Our inspectors verify the quantity of your order, check for a complete and even finish coat, inspect for the proper millage, test for adhesion and more. We can also perform specialized inspections by request.

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Assembly

If your products require assembly, let us take care of it for you. After QC inspection, our in-house assembly services help you save time and resources when getting your products to market. We’re able to complete minor assembly on your coated products and components.

Our professionals are trained in the handling and assembly of your products, and we strictly follow your requested guidelines.

 
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Packaging

Custom packaging is available for products headed for retail or wholesale markets. Using the packing materials you provide, our teams will pack according to your specifications to ensure your products, the package and the presentation meet your expectations and impress your customers.
 
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Shipping

We are your trusted provider for all the services you need to achieve an excellent finish and get your products shipped fast. Our facility is equipped with loading docks to accommodate our fleet of 48′ and 53′ trailers operated by our own professional drivers.
 
We deliver your completed order to your location with direct shipping, and have regular pickup and drop off service available with an ongoing agreement.
 
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Certifications and Verifications

Keystone Koating provides high volume B2B powder coating services.

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