CRC 02083 Dielectric Grease, 10 Wt Oz

It's a non-conductive silicone grease used on electrical connections: spark plug boots, bulb sockets, battery terminals, trailer and low voltage connectors, and weatherproof plugs. It seals out moisture and dirt at the connection and helps prevent corrosion, while the metal contacts themselves still mate and carry current through the film. The CRC part number is 02083 and it comes in a 10 wt oz container.

No. Dielectric grease is an insulator, but the mating surfaces of a terminal or plug push through it under contact pressure, so current still passes. The grease fills the surrounding gap and keeps water and contaminants off the metal. Apply it to the inside of boots and around the pins rather than trying to build a layer between two clamped contact faces.

No, they do different jobs. 02083 is a dielectric grease, a silicone-based sealing compound left on the connection to keep moisture out. A contact cleaner is a solvent that flashes off and leaves nothing behind, used to strip oxidation and residue before assembly. Anti-seize is a metal-loaded paste for threaded fasteners, not for electrical plugs. If you're servicing a corroded connector, clean it first, then apply the dielectric grease on reassembly.