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Viracon Adds Black Finish Option to its ExtremEdge Spacer Product


Offers Optimum Warm Edge Performance


OWATONNA, MN – Viracon, the nation’s leading single-source architectural glass fabricator, now offers its ExtremEdgeTM warm edge spacer in a black finish.

ExtremEdgeTM is positioned between two lites of glass and is designed to improve the U-value of an insulating unit. The new black finish distinguishes itself from other finishes by its ability to reduce interior reflection through glass.

In practice, ExtremEdgeTM reduces edge conductivity and thus, heat transfer into buildings. It offers condensation resistance values as high as 64, minimizing the formation of condensation on glass surfaces. These values exceed those of spacers composed of both aluminum and stainless steel. ExtremEdgeTM also offers better U-value performance than aluminum and stainless steel.

To learn more about the new black finish and the overall performance metrics of ExtremEdgeTM, visit

About Viracon, Inc.
Viracon, the nation’s leading single-source architectural glass fabricator, is based in Owatonna, Minnesota, and has facilities in Statesboro, Georgia, St. George, Utah and Nazaré Paulista, Brazil. Viracon produces high-performance glass products, including tempered, laminated, insulating, silk-screened, digital printing, and high-performance coatings, for North American and international markets. The company is a subsidiary of Apogee Enterprises, Inc. (NASDAQ: APOG). Apogee, headquartered in Minneapolis, is a leader in technologies involving the design and development of value-added glass products and services. For more information, visit

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