Sherwin-Williams Only U.S. Licensee for Arkema Kynar 500 FSF PVDF Resin May 5, 2015 No Comments Sherwin-Williams announced that the company holds the sole U.S. spray license for Arkema Inc.’s Kynar 500® FSF® PVDF resin, a primary component of Sherwin-Williams SHER-NAR® 5000 superior performance architectural baking enamel. Read More