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National Coil Coating Association

How Coil Coating Helps Give Manufacturers An Edge Today

CLEVELAND, OHIO – Coil coating plays an important role in enabling manufactures to give their products a competitive edge thanks to specialty coatings now available and coverage capabilities not possible with most other painting processes.


For automakers, the coil coating process gives manufacturers the ability to provide extended corrosion warranties. Many of these warranties are based on the use of steel strips with specialty coatings that are applied on both sides with the coil-coating process prior to forming. Automakers that form parts with these coil coated steel strips can guarantee corrosion protection for inaccessible cavities or flange sections in automotive construction.


For appliance manufacturers, coil coated metal provides a more manageable way to add new products with specialty finishes such as popular antimicrobial coatings, fingerprint resistance, as well as designer finishes, like metallic coatings. Using coil coated metal, which is coated off-site, streamlines production and eliminates the need to plan for additional in-house painting processes, making it easier to introduce new products in smaller runs.


Anti-microbial coatings kill 99% or more of bacteria that come into contact with the appliance. When these coatings are applied with the coil coating process, they offer more protection than other means of application. Unlike post-painting operations, the coil coating process coats the entire surface so that inaccessible areas, such as the interiors, hemmed edges, and tubes are also coated. Additionally, the primer and paint, either of which could contain the antimicrobial additive, are tightly-bonded to the metal and are often applied to both sides of the metal. Some antimicrobial coatings even include metal pigment to improve heat exchange for HVAC applications.


Fingerprint resistant coatings are also in demand and can be applied during the coil coating process, eliminating the need for end-users to continually wipe off smudges from appliances. Even popular metallic coatings that give stainless steel and rubbed copper looks can be applied at a coil coating facility and can be combined together with antimicrobial and fingerprint proof coatings to add value and differentiate products from competitors.


For building products manufacturers, coil coating is the method of choice for finishing metal with popular aged, weathered looks for products such as wall panels, roofing tiles and shakes. With coil coating, durable metal panels and roofing materials can be made to look like copper patina, clay, weathered wood, rusted metal, and more.


Coil coated metal for building materials is not just about appearance, cool metal roofing is often created with cool paints using the coil coating process, making panels not only attractive but also energy-efficient. Solar panels are also being made with aluminum that has been prepainted with absorber coatings for thermal energy applications at solar power plants.


For other manufacturers looking for unique looks, coil coaters are used today to apply laminate films to metal to create dramatic architectural paneling and appliances. The look of stainless steel, brushed copper, wood grains, and nearly any photographic design can be achieved by applying laminates to metal. When applied at a coil coater, the laminate bond is stronger and more durable than with any other process. The film is tightly adhered to the metal and provides excellent bending and mechanical properties to suit even the most severe bends and shapes. The laminated coils are fully roll-formable and can also provide fingerprint resistance, high abrasion and weather resistance, requiring very little maintenance.


For more about specialty coatings and to learn more about the coil coating process, visit the National Coil Coating Association website and view the online tutorial entitled “Specialty Coatings” at




Leslie Schraff


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