K-Flex Gray Duct Liner is the new and improved flexible closed-cell elastomeric insulation product from Nomaco K-Flex. The duct liner now features an R-value of 4.2 at a nominal 1-inch thickness, meeting U.S. energy code requirements. The company claims that the duct liner provides a number of additional benefits for installers including mold- and mildew- resistance, excellent acoustic performance and user-friendly installation. The product’s resistance to mold and mildew is a key benefit for public buildings such as schools, hotels and hospitals. K-Flex Gray Duct Liner contains Bio-Guard, a proprietary anti-microbial agent. Available in various widths to accommodate different duct sizes and connections, K-Flex Gray Duct Liner comes in 50- or 100-foot rolls and can be ordered with or without pressure-sensitive adhesive.

Nomaco K-Flex, 100 Nomaco Drive, Youngsville, NC 27596; (800) 765-6475; fax (800) 765-6471; www.nomacokflex.com