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What’s in a coating, and why does it matter?

When the sun starts swinging punches at your building's coating, chalking and fading will start. But there's a way to prevent it.

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June 15, 2015 |
Jeff Alexander

Color sets a metal building apart. It captures attention. It sets a mood. It projects an attitude. And, if not protected, that attitude could give the wrong message, one of age, exhaustion, and wear.

Those passionate reds, valiant blues, sharp greens, stark yellows, all of them need protecting. As soon as your color meets the sun, the sun starts swinging punches at your color. Over time, the ultraviolet (UV rays) will create chalking and fading.


Rugged, durable coatings protect against the degradation of color pigments due to outdoor exposure. If you want brilliant color, you want a sturdy coating.

Here’s why and how it works

Coatings are applied to the surface of an object, typically referred to as the substrate, and form an essential part of the finished product. In many cases, coatings improve the surface properties, including adhesion, appearance and corrosion or wear and scratch resistance.

While each coating system contains the same four principal ingredients, that combination of ingredients can change depending on the final color and application of the coating.

To learn more, please continue reading on the Star Buildings blog.

Jeff Alexander | Metal Building Trends

Jeff Alexander, Sherwin-Williams Coil Coatings VP of Sales for the Coil and Extrusion division has been with Sherwin-Williams (formerly Valspar) since 1997. He has an entrepreneur spirit and has thrived in building relationships with our customers. Jeff has fully immersed himself in all levels of the coating industry and enjoyed his term as National President at NCCA (National Coil Coating Association).  He is focused on continuing to educate customers on the paint industry.

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