I have used a spray version of CorrosionBlock for years, first on my
saltwater fishing boats, and now on my antenna elements and outdoor cable
connectors when doing portable beach contest activities. The only problems
has been where I did not use the spray.
It is available from Amazon and probably any marine supply store.
73,
Henry - K4TMC
On Mon, Dec 4, 2023 at 12:23 PM Don Tucker <w7wll@peak.org> wrote:
> I suspect you will get a lot of feedback on your post, but my opinion is
> to avoid any sort of conductive grease on any part of a connector, for
> many reasons.
>
> Here, my tower and all the connectors associated with the antennas and
> support items on or near it is located 1400 feet back and above a
> beautiful (and very wet) central coastal Oregon beach. Erected my array
> around 2002. Prevalent winds are from the west, right off the ocean.
> Obviously lots of SS involved in the exterior fasteners and such items
>
> To the point, I was highly concerned about salt water intrusion of the
> electrical connections outside the house. So, stopped at the local
> commercial crabbing/fishing fleet supplier/rigger in Newport OR (Yaquina
> Bay) and asked what they recommended, what was used to the greatest
> extent by the local fleet and fisher folk.
>
> They suggested a Lear Chemical Product (think is made in Canada) called
> CorrosionBlock, in the tube. Claimed it was impervious to water
> intrusion and totally neutral electrically. Said it was commonly used by
> the local fleet owners and the electrical and RF repair folk who do
> maintenance on the ocean going boats and would keep the connector
> threading or pin inserts free on connectors. I'm of the understanding it
> is sold by a large number of the marine suppliers.
>
> I can only say my experience is that I have yet to have any working
> issue with an RF connector or an electrical connector (think rotors and
> switch boxes) in the 20 plus years I've been using it (other than some
> dumb mistake by me in its attachment to the cable). The grease is an
> aqua color so it is easy to see where it was applied (or missed). That
> doesn't mean I still don't apply a good tape wrap or tape or flooded
> heatshrink around any connector to connector, cable to connector, etc
> when I can.
>
> Would imagine there are other products which do the same thing but one
> experience input.
>
> Don W7WLL
>
> 'This house runs on love, laughter and really good wine.'
>
> On 12/4/2023 5:02 AM, Paul Christensen wrote:
> > After 15 years, a pair of PL-259 connectors have seized on mating SO-239
> > jacks used on an outdoor RF choke. Is there anything more suitable than
> > Penatrox-A which is Au/Cu rated? Ideally, I'd like to apply a synthetic
> +
> > conductive grease on the mating SO-239 threads.
> >
> >
> >
> > Unrelated, but while investigating the coax connectors, the
> LMR400-Ultraflex
> > cable I installed about 15 years ago has started to decompose. At the
> time
> > of installation, I knew the Ultraflex version has a shorter life span but
> > wasn't expecting such severe decomposition. The jacket is crumbling due
> to
> > its rubber composition. This past weekend, I replaced it with gelled
> > LMR400-DB for direct burial, but it's installed above ground. Like the
> > original LMR400, the DB version has a rugged polyethylene (PE) jacket.
> >
> >
> >
> > Paul, W9AC
> >
> > _______________________________________________
> >
> >
> >
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