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Gypsum Panels Demonstrate Mold Resistance

Written by Heidi Schwartz. Posted in Interiors, Safety

Tagged: , , , , ,

Published on December 10, 2009 with No Comments

Georgia-Pacific Gypsum LLC announced earlier this fall that two of its Dens™ interior gypsum panel products passed the industry’s most stringent mold resistance test. DensArmor Plus® High-Performance Interior Panel* and DensShield® Tile Backer each passed the 12-week test, conducted in accordance with the U.S. Environmental Protection Agency’s ASTM D 6329 ** protocol (Web link below).

The test, which is three times longer and more rigorous than ASTM D 3273—the current industry standard, was conducted by an independent third party, RTI International, at its facilities in Research Triangle Park, NC between February and June 2009. To date, no other gypsum products manufacturer has announced test results showing zero mold growth for 12 full weeks for any product.

“These results confirm what we have long known—that our Dens products lead the industry in mold and moisture resistance performance,” said Kendall Clark, Research & Development Program Manager, Georgia-Pacific Gypsum. “Architects and builders can take comfort in the fact that the mold resistant properties of Dens products save time and money during construction, and also ensure the sustainability of structures.”

According to Susan Raterman, an industrial hygiene consultant in the areas of indoor air quality, mold mitigation, and asbestos management, the news that two Dens™ interior products have passed a rigorous 12-week test is noteworthy. “Both the length of the test and the fact that it used two of the most problematic species of mold found in buildings are indicative of the rigor of this mold resistance performance standard,” said Raterman, founder and president of The Raterman Group Ltd. “These results raise the bar for the entire industry, and further illustrate Georgia-Pacific Gypsum’s leadership in product quality and innovation.”

The DensArmor Plus® panels were also the first to be GREENGUARD Indoor Air Quality Certified® and GREENGUARD Children & Schools™ Certified as low emitting gypsum panels.

* Test results limited to DensArmor Plus® High-Performance Interior Panel and do not include DensArmor Plus® Abuse-Resistant Interior Panels and DensArmor Plus® Impact-Resistant Panels.
** For more information about the EPA’s Environmental and Sustainable Technology Evaluations (ESTE) projects for microbial resistant building materials, visit

About Heidi Schwartz

Heidi Schwartz

Schwartz joined Group C Media in April 1989 as managing editor of Today's Facility Manager (TFM) magazine (formerly Business Interiors) where she was subsequently promoted to editor/co-publisher of the monthly trade magazine for facility management professionals. In September 2012, she took over the newly created position of internet director for TFM's parent company, Group C Media, where she is charged with developing content and creating online strategies for TFM and its sister publication, Business Facilities. Schwartz can be reached at

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