What is Dielectric Grease?

Dielectric Grease is a nonconductive silicon based lubricant. It does not conduct electricity, which makes it suitable for uses in electrical components and electronic circuits. In many cases, it it used to seal the rubber, or non conducting gasket that may insulate or protect sensitive parts of a circuit, such as protecting outdoor coaxial cable from weathering.

Precautions when using dielectric grease.

When applying dielectric grease to electrical circuits it is recommended to apply the grease only to the nonconductive mating surfaces of the connector. Applying the lubricant to the mating surfaces may result in increased resistance, or failure of the circuit completely. Assure that all connections are fitting tightly and that the circuit is fully operational before applying any type of dielectric lubricant or grease.

Various dielectric grease uses

Dielectric Grease has many uses in the mechanical and automotive fields. Automobiles contain a significant amount of electrical circuits and are continuously exposed to adverse weather conditions making dielectric grease very useful. Mechanics typically use it on spark plugs to seal the rubber connector and grease the porcelain preventing it from becoming stuck.

Automotive Applications of Grease

For most general applications of dielectric grease in the automotive sector the lubricant will be applied to the male end of the Molex plug or male/female rubber boot. First, verify the both sides of the metal connecter are free of corrosion and rust. It is important that they are making a good connection before applying the dielectric grease. Before attaching both ends, spread the lubricant along the entire part of the outer lip that makes contact with the female connector. This will keep out water, and limit corrosion without conducting electricity.