Dielectric grease, or tune-up grease, is a silicone-based grease that repels moisture and protects electrical connections against corrosion. ... Since dielectric grease is a silicone grease, it should not be used on silicone-based rubbers or plastics, as it will break them down over time.
Super LubeĀ® Grease is an excellent lubricant that prevents wear between metal, plastic, and rubber parts. It is compatible with Buna, Nitrile, Viton, Neoprene and Silicone rubbers. Super LubeĀ® Silicone Grease is also available for compounds that are not compatible with hydrocarbons.