3M™ Cold Shrink QT-III Silicone Rubber Skirted Termination Kits, 7640-S, 7650-S and 7660-S Series, contains one-piece, skirted, silicone rubber termination, qualified as IEEE Standard 48 Class 1 for outdoor weather-exposed applications. The termination assemblies consist of a skirted insulator, high-dielectric constant (High-K) stress control tube, conformable High-K stress controlling compound and built-in environmental top sealing compound. The insulator is made of a dark gray silicone rubber with excellent tracking resistance and hydrophobic propertiesInformation provided by 3M |