To close the loop on the use of dielectric grease, I found a good explanation of what it is, how to use it, or not use it. Also, it being a silicone grease, it should not be allowed to contaminate any
fiberglass surfaces. It is impossible to clean up. Donna D. might chime in on this.
https://www.w8ji.com/dielectric_grea...ive_grease.htm
They also explain what the so called conductive greases are.