Once the metal is cleaned, treated, and painted, the strip is rewound into a coil size prescribed by the customer. From there, the coil is removed from the line and packaged for shipment or additional processing.
After the primer is applied and cured, then the metal strip enters the finish coat station where a topcoat is applied. Topcoats provide color, corrosion resistance, durability, flexibility and any other required physical properties. Like primers, the topcoat is cured using thermal cure ovens.
Oven
Coil coating ovens can range from 130 feet to 160 feet and will cure the coatings in 13 to 20 seconds.
During this stage, the strip enters the prime coat station whereby a primer is applied to the clean and treated metal. After the primer is applied, the metal strip travels through a thermal oven for curing. Primers are used to aid in paint adhesion, improve corrosion performance and enhance aesthetic and functional attributes of the topcoat.
S Wrap Coater
The S wrap coater design allows for primers and paints to be applied to the top and back side of the metal strip simultaneously in one continuous pass.
The cleaning and pretreating section of the coil coating process focuses on preparing the metal for painting. During the cleaning stage, dirt, debris, and oils are removed from the metal strip. From there, the metal enters the pretreatment section and/or a chemical coater whereby chemicals are applied to facilitate paint adhesion and enhance corrosion resistance.
Dried-In-Place
In this stage a chemical that provides enhanced corrosion performance is applied. This treatment can be chrome free if required.
The accumulator is a structure that adjusts up and down to store material, which makes continuous operation of the coil coating process possible. This accumulation will continue to feed the coil coating processes while the entry end has stopped for the stitching process. As much as 750 feet of metal can be collected.
Rugged and durable powder coating stands up to a vast array of harsh environments - from corrosive conditions to high-impact applications.
The Benefits of Powder Coating with AZZ
Powder coating your critical components offers a variety of benefits in terms of performance, long-term cost savings, and more, and AZZ has an expansive network of powder coating facilities ready to help you take advantage.
We have the experience and tools you need to realize those decorative and functional benefits, and that network helps us do it without vast turnaround times you’ll experience with smaller operations.
Powder Coating: A More Durable, Protective Option
Powder coating provides:
Corrosion Resistance Chemicals and moisture can eat away at metals like steel, but powder coating provides key resistance against those elements by acting as a barrier that prevents corrosion.
Chemical Resistance Depending on a finished product’s unique application, oils, gasoline, harsh cleansers and much more can come into contact with finished solution. Powder coating helps parts resist the negative effects of these chemicals.
Electrical Insulation Resistance Powder-coated components can be specifically designed and tested for use on electrical components, helping ensure safety and performance.
Heat Resistance While in use, coatings can face elevated temperatures either constantly or during intermittent use, and powder coating can help finished products stand up to those harsh environment factors in applications from residential barbecues to automotive engines and beyond.
Abrasion, Impact and Marking/Mar Resistance Powder coating is known for its durability in the face of forces that would wear it down, cause damage due to significant impact or mark the coating with scratches or other marring. Not only does this maintain the coating’s integrity and resistance to other elements – it also helps maintain an attractive finish for longer durations of use.
Powder-coated parts are also attractive, with consistent, quality finishes that stand the test of time and make parts stand out.
AZZ’s Flexibility in Powder Coating
AZZ has facilities that can powder coat everything from the smallest parts to parts up to 60 feet in length, offering tremendous flexibility in meeting all of your powder coating needs.
AZZ has also earned the following certifications in heavy equipment, aerospace and defense, and more:
AS9100
Caterpillar
General Dynamics
ISO 9001
NADCAP Quality
PACCAR
We back our versatility and experience with a commitment to a durable, long-lasting and attractive finish. To learn more, visit azz.com/powder-coating .
FABTECH returns to the Georgia World Congress Center, November 8-10, 2022 and provides a convenient ‘one-stop shop’ venue where you can meet with world-class suppliers, discover innovative solutions, and find the tools to improve productivity and increase profits. There is no better opportunity to network, share knowledge and explore the latest technology, all in one place.
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