I'm an ex linesman. We used heat shrink on quite a bit of underground work.
And they use it here on the irrigation systems.
The problem that I've seen on coax is likely related to flexing caused by
wind and temp swings. Eventually the seal seems to come loose from the
I've used both Ilsco and 3m. Back to mastic tape for me!
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----- Original Message -----
From: "Tom Rauch" <firstname.lastname@example.org>
To: <TexasRF@aol.com>; <email@example.com>; <firstname.lastname@example.org>
Sent: Thursday, April 29, 2004 8:23 AM
Subject: Re: [TowerTalk] 9913; Rotor loops
> > Like Marlon, I have also given up on heat shrink with or
> without the internal
> > "glue" for sealing connectors. The weather seal is not
> robust enough to
> > survive hot summer/cold winter temperature cycles.
> Gosh, we used it all the time in the CATV industry and even
> in broadcast work and it always has worked flawlessly. In
> the CATV industry, we used it extensively to seal buried
> splices and never had a problem.
> I just cut some off my splices in some heliax put on in
> 1999, and everything was perfect under the shrink. The only
> thing I've ever seen that is a problem is cutting the stuff
> Maybe there is some cheap stuff around. I'll try to get a
> part number for the good stuff.
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
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