Permatex Dielectric Grease - 81150 is a high-temperature, non-curing silicone compound designed to lubricate, seal out moisture, and protect electrical and electronic components from corrosion. It is ideal for use on spark plug boots, battery terminals, trailer hitches, and other electrical connections. It is non-melting and non-conductive, making it safe for use on all types of electrical connections. It also provides superior lubrication and protection for rubber, plastic, and metal parts.