What’s the difference between your building’s coating chalking and fading?

While the reasons for chalk and fade are different, both occurrences are something to watch for. SPONSORED CONTENT

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October 29, 2014 |
Jeff Alexander

Image: Valspar

Color can be one of the most important design elements in an architectural project. However, a beautiful building aesthetic can be negatively impacted if the coating chalks or fades. While the reasons for chalk and fade are different, both occurrences are something to watch for.

Chalking is caused when the paint system degrades at the surface of your finish. This is typically due to ultraviolet (UV) ray exposure. Other contributors include acid rain, pollution, salt spray, and abrasion by airborne particulates. When the resin breaks down, the surface takes on a white powdery or chalky appearance and embedded pigment particles lose their film adhesion. 

Fading occurs when environmental substances attack the coating and cause the color to change. From high and fluctuating temperatures to UV exposure, fade is actually a breakdown in the coating’s resin causing the color pigment to change. It can manifest in many ways – the color may become lighter. 

In some cases, the color can darken or change completely over time, such as blue fading to purple. Depending on the nature on the breakdown it is possible for chalking and fading to happen simultaneously.

No matter what visual appeal you are trying to achieve, protect your vision with a high-quality coating to ensure your building ages beautifully.

Jeff Alexander | Get Inspired: Color and Coatings

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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