Having said that if the rubber isn t sealing properly the grease may help with that and will prevent corrosion on the terminals.
What is bulb grease made of.
Quite often people have used both vaseline and dielectric grease on their automotive.
Silicone grease sometimes called dielectric grease is a waterproof grease made by combining a silicone oil with a thickener.
Use it on light bulbs flood lamps electrical connections tail lights headlights batteries and more.
They might have never noticed any difference but an expert in the industry would tell whether they made a mistake.
Summary of dielectric grease vs.
Most commonly the silicone oil is polydimethylsiloxane pdms and the thickener is amorphous fumed silica using this formulation silicone grease is a translucent white viscous paste with exact properties dependent on the type and proportion of the components.
The dielectric grease is relatively pricey owing to the nature of its uses while the silicone grease is relatively cheaper.
2 responses to dielectric grease for bulbs henrybourdon4961 may 24th 2018 i like the idea of greasing the bulb but i noticed there was no mention of grease on the fingers and smearing the glass with it.
It is intended to be used to lubricate the rubber parts such as o rings and gaskets of sockets and to help insulate the contacts from from moisture which causes corrosion.
Now professionals like to use the grease only when there s corrosion on the terminals.
The grease in question is dielectric grease bulb grease which is used for in this case automotive light bulb sockets.
This grease is a nonconductive insulating lubricant.
Chemical properties dielectric grease does not conduct electricity and stays pliable it does not cure while silicone grease does not conduct electricity either but cures to a hard form.
Modern vehicle assembly lines don t grease bulbs because the rubber seals are sufficient at keeping moisture out the electrical connection can be made more reliably.
Otherwise they prefer to use dielectric grease.
When i install bulbs and high powered light bulbs i install them with a piece of toilet paper so i leave no oils and grease on the glass.
This generally is a silicone dielectric grease although some teflon based greases are acceptable.
Whenever the bulb is prone to corrosion you must apply some bulb grease on it.
Now dielectric grease can also serve the purpose of bulb grease.
The grease should have good stability and not contain metals in any form and be specifically designed for use as a dielectric grease.