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PPG Industries Introduces Self-Cleaning Windows.

* PPG industries has introduced SunClean self-cleaning glass for residential window applications. The revolutionary new glass provides two consumer-valued benefits: windows with SunClean glass are easier to clean and stay cleaner, so homeowners can enjoy a cleaner view with less hassle. A durable, transparent coating on the glass helps break down dirt particles and sheets water so that rain or the light spray of a garden hose can rinse the exterior clean. Additionally, the sheeting action provides minimal spotting for a cleaner appearance.

The self-cleaning properties of SunClean glass are made possible by a transparent coating of titanium dioxide applied during the manufacturing process. The application process, patented by PPG, makes the coating an integral part of the glass, providing homeowners with a durable, long-lasting product.

After a few days of exposure to ultraviolet (UV) rays from the sun, the coating becomes energized and provides photocatalytic and hydrophilic properties. The coating and UV light combine to create a photocatalytic action that helps to loosen and dissolve dirt and other organic material. Since UV light is abundant even on cloudy days, this process works nonstop throughout the day, and even remains at work during the night.

When rain or even the light spray of a garden hose hits the window, the dirt and organic materials are easily washed away. The sheeting action helps the window dry without spotting or streaking like conventional glass.

By year end, the glass will be available to makers of wood, vinyl and aluminum windows serving the new construction and remodeling markets. This will allow SunClean glass to be one of the hot new options available to consumers during the spring 2002 construction season, according to PPG.
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Publication:Household & Personal Products Industry
Date:Sep 1, 2001
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