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Re: [TowerTalk] Coax joint weather sealing

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Coax joint weather sealing
From: Robert Harmon <k6uj@pacbell.net>
Date: Wed, 29 May 2019 10:32:20 -0700
List-post: <mailto:towertalk@contesting.com>
I have used Steve's process he described for some time and have had great 
results.  One additional step I do is to coat the ends of the final wrap 
of electrical tape wth black liquid tape.  This keeps the tape ends from 
flagging.  

Bob
K6UJ






> On May 29, 2019, at 10:05 AM, k7lxc--- via TowerTalk 
> <towertalk@contesting.com> wrote:
> 
>>   My pain, and really it is a pain is the evil goo that resides with a
> joint. I believe the joints have been sealed with a 'traditional' method 
> involving some thick butyl rubber compound directly on the connectors 
> followed by a PVC tape over wrap. The local conditions see typically 30-50 
> degrees C daytime temperatures and the joints were made maybe 7 years ago.
>>   In removing the PVC tape I am confronted by a sticky gooey oozing evil 
>> mess that sticks to everything and renders working on the joint a positive 
>> nightmare. There are no known gloves that can be used as the adhesive 
>> qualities of the evil goo pull even the most tightly stretched powdered 
>> gloves from fingers in a second.
> Hiya, Martin -
>     Sounds like you ran into some CoaxSeal. US made commercial vapor wrap 
> (not CoaxSeal) is a long term solution so you must've gotten some local 
> product. My condolences.
> 
>     The moral of the story is to put down a layer of electrical tape on the 
> connection first and then put the vapor wrap over the tape. A finishing layer 
> of electrical tape is recommended. This will negate any potential CoaxSeal or 
> typical inferior product problems
>     Commercial installers sometimes use clear acrylic spray paint to coat the 
> joint. Of course this advice won't help with your immediate problem but it's 
> a place to start with subsequent installations.
> 
> Cheers & GL,Steve     K7LXCTOWER TECH
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