Hi,
I use quality silicone grease for various electronic connection needs as well as for, well, he he, bug control.
However, I absolutely MUST state though that i HIGHLY CONDEMN the use of CRC brand silicone grease. Actually it may be the spray not the grease.
The problem with this PARTICULAR brand is that it can be very harmful to some plastics. There may be other brands too that are not good for electrical work.
I guess the main thing to look for is if it says RIGHT ON THE CAN "safe for plastics" then it's ok. But if it states only one or two types of plastics i'd stay away from it. For example, the CRC can says "safe for nylon" but that's it. It turns out that it creates blotches on some plastics and may ecen be worse for other types of plastics.
Dielectric grease is made for electronics, but not all silicone greases are, and i am not sure if all types that are called "Dielectric Grease" are safe for plastics. The only way to be sure is if it says it right on the can that it is safe for plastics, and not just some specific plastic(s).
CRC may in fact make another type of silicone grease that is actually called "Dielectric Gease" and that one may be ok, but i have no personal experience with that one. They also may make other types that are actually ok for plastics, but it will state that on the package.
I'd say "test on a small area first" but i dont know how long it takes to actually see the damaging effects. Could be a day, a week, a month, or a year.
Oh yeah, the 'bad' ones contain some sort of petroleum distillates.