I've never had medical grade petroleum jelly attack any connectors....
that's not saying it won't, it's just that I've never had an issue with
it.
I've never heard of it attacking connectors. But I would never flood a high
power connector with anything, even silicon dielectric grease. I think doing
so is just asking for problems.
Petroleum jelly is a hydrocarbon, and liquifies at around 100F. It does emit
flammable vapors that are harmful to some materials. Don't take my word for
it:
http://en.wikipedia.org/wiki/Petroleum_jelly
I think it is generally a bad idea to flood a high power coaxial connector
with anything, because almost anything other than air can lead to carbon
tracking problems. I will never use something that liquifies and runs at 100
degrees or so. It is flammable with something that wicks, just like kerosene
or fuel oil. Soak some cotton balls with vasolene and light them. :)
OTOH, I've had clear "silicone grease" attack electrical connectors such
as
"Jones plugs" and the like. The "plastic" insulation, probably Bakelite,
in those plugs would develop a dead short with only ~12V DC
across the pins in just a few months!!
It may be time to rethink a bad experience from the 60's and 70's,
especially when we don't know the intended application or composition of the
materials that caused issues.
Almost every modern vehicle has connectors flooded with some sort of grease,
and silicon dielectric grease is a recommended waterproofing and corrosion
protection. It is flooded right into connectors.
http://en.wikipedia.org/wiki/Silicone_grease.
http://www.acc-silicones.com/products/siliconegrease.ashx
73 Tom
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