Dielectric grease is an insulator and should not be used on any metal that you would want to conduct a current. It is mainly used on the inside of spark-plug boots to keep moisture out and to them from bonding to the ceramics.

See this vid for instruction:

Finn,

Your post was made into its own thread. It was a interesting video and subject worthy of its own thread.

Very good video, this should be helpful to quite a few, thanks for sharing it.