A special high-temperature formula dielectric silicone for spark plug boots. When applied to spark plug boots and wires, the product prevents boots from sticking to plugs and distributor cap. It also prevents voltage leakage. Avoid stuck-on boots & prevent arcing. Product Features:A special high-temperature formula dielectric silicone for spark plug bootsWhen applied to spark plug boots and wires, the product prevents boots from sticking to plugs and distributor capPrevents voltage leakageAvoid stuck-on boots & prevent arcing