The 30536 is a Dielectric Grease Tube provides a moisture-proof barrier that lubricates and protects electrical equipment from salt, dirt and corrosion. The LB 8423 is a silicone dielectric compound that facilitates and improves tune-ups. The compound prevents voltage leakage around any electrical connector thereby insuring a strong spark in high energy ignition systems. It is also an excellent lubricant on rubber, plastic and ceramic surfaces and it also has good high temperature properties, thus preventing fusing of spark plug boots to the spark plug itself. Typical applications include spark plug boots, distributor cap nipples, battery terminals, ignition coil connectors and trailer electrical connectors. Applications: Industrial, Maintenance & Repair