Carlisle SynTec Systems introduces the new Sure-Flex PVC KEE membrane compounded with Elvaloy (KEE). Elvaloy KEE (Ketone Ethylene Ester) provides enhanced chemical, heat and UV resistance as well as long-term weldability to the already-proven Sure-Flex PVC membrane. Elvaloy KEE enhances the performance and extends the useful life of polyvinyl chloride (PVC) products. Because of its high molecular weight, Elvaloy KEE does not migrate out of the PVC membrane, improves low-temperature performance and helps to keep the membrane pliable and weldable. For more information, visit www.carlisle-syntec.com.