Super Lube Silicone Dielectric and Vacuum Grease is a specially formulated non-curing silicone compound that exhibits superior performance in both electrical and vacuum applications. Super Lube Silicone Dielectric and Vacuum Grease seals, protects, and insulates electrical components and connectors. It is waterproof and provides a barrier against moisture and other contaminants in many types of electrical contact points. Super Lube Silicone Dielectric and Vacuum Grease helps reduce the overall leak rate in vacuum applications by filling the spaces of the gland's surfaces and lowering permeation rates of the elastomer. It outperforms in both vacuum and pressure systems. Super Lube Silicone Dielectric and Vacuum Grease is an NSF registered Food Grade lubricant, rated H1 for incidental food contact. Meets former USDA (H1) guidelines. Super Lube Silicone Dielectric and Vacuum Grease is translucent white, clean and clear in appearance and exhibits high dielectric strength. It is compatible with most plastics and rubbers.