Grease question, dielectric versus anti-seize

[Finnerty]

I replaced my temperature sender and over-heat alarm switch and used an anti-seize grease on the threads (Mariners Never-Seez), remembered after that they need to be grounded...should I have used dielectric grease? (I searched dielectric grease and am confused...it is a non-conductive grease that is used on electrical connections...therefore doesn't it interfere with the electrical connection...seems backwards?) Also, what would I use on the threads of my zincs...nothing?

 

[Bondo]

Re: Grease question, dielectric versus anti-seize

Ayuh,... Temp senders use pipe dope to seal 'em up...
Not neversieze, 'n definitely Not di-electric grease...

Most zincs I've seen are attached with SSteel bolts, Dry...

 

[Brentathon]

Re: Grease question, dielectric versus anti-seize

Pipe dope, teflon paste, teflon tape, and almost all greases are ALL poor conductors. However, even if you use them, you may very well obtain an electrical connection between the threads, as some metal-to-metal contact is likely.
Some times, they recommend NO sealant if your putting brass into cast iron, especially if it comes with the red sealant stuff......but I use teflon tape/paste, and simply wire a ground wire to the base of the switches/senders with a small SS hose clamp. With teflon tape or paste, it's easy to remove in the future, and corrosion of the iron threads is slowed.
Always double-check continuity, anyway.