What brand of grease is generally used for this purpose? Dow
Corning #4 is the available "professional" grease in these parts, but
is that too thick?
Thanks.
best wishes,
Nick
VE7DXR
At 16:06 20-11-13, Bill Wichers wrote:
As long as the grease isn't too thick it is fine even on
low-pressure contacts. I've seen it used in RJ45 connectors for
wireless LAN devices that are used outdoors to help prevent
corrosion of the data contacts. On a relatively beefy connector like
F, PL259, N, etc., the normal wiping action of the contacts during
mating will ensure good electrical contact regardless of the
presence of the grease.
-Bill
> High pressure contacts, I feel fine getting slathering dielectric
grease all over
> them before making the connection. Examples are like a Battery
terminal in a
> car, or a spade lug under a screw, or the barrel on an F
connector. Something
> you actually apply some amount of force to tighten (even just "tight finger
> force"). This forces the grease out of the actual metal to metal
contact, and
> at the same time ensures the metal contacts are enclosed in the grease.
>
> But for low pressure contacts, e.g. molex pins, or the center pin on an F
> connector jack, I think it's best to keep the dielectric grease off the low
> pressure contacts. Having it in and around a connector boot or shroud that
> goes around a low pressure contact is fine. A good thing in harsh
weather or
> chemical environment to help keep weather and fumes out. Rubber
> connector boots last a lot longer with silicone grease on them.
_________________
Topband Reflector
_________________
Topband Reflector Archives - http://www.contesting.com/_topband
|