[TowerTalk] Protecting Aluminum Antennas

[Robert Harmon]

Jim,

That GE stuff sounds great.  I would also like to find out if is still 
available.
I am putting up a new yagi soon and would like to try it.

73,
Bob
K6UJ



On 3/19/16 10:20 AM, Jim Thomson wrote:
> Date: Sat, 19 Mar 2016 08:53:51 -0700
> From: David Gilbert <xdavid at cis-broadband.com>
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Protecting Aluminum Antennas
>
>
> I'm not advocating anodizing antenna elements, only disputing that it
> makes any difference electrically,  Anybody not capable of abrading the
> anodizing at the joints shouldn't be putting up antennas anyway.
>
> Dave   AB7E
>
> ## agreed,  simply grind off the overlap portion with emery cloth etc.
> Now this all assumes that the tubing was anodized on the outside only.
>
> ##  back in the late 70s,  I had a spray bomb of this  stuff,  called
> high voltage acrylic plastic,  made by GE.  Came out clear.
> It was the bomb.  Even used it on air variables on a friends
> 160m  shunt fed tower.   Previously it would  arc with just 100
> watts, (and tuned to flat swr  with low power).  After spraying
> it with the GE glop,  it  would not arc with 1.2 kw ccs.
>
> ##  I used it for all sorts of stuff, including hv supplies  etc, or anywhere
> you wanted a cheap and fast method of beefing up HV  stand off.
>
> ##  Then built a HB  10m yagi, using 1 inch  6061-T6  tubing..and
> .875 inch tips. ( 1980).    Tubing was scrubbed  with  sos /jets scouring pads,
> ( used for scouring pots and pans) till the  tubing gleamed. (6061-T6 is gunky
> since its oil quenched, done in an oil bath).   Then rinsed with garden hose and dried in the sun.
> Then spayed the GE  glop  on all the  els  for an experiment.  They stayed
> shiny and clean, and just started wearing off   just a few years ago.
>
> ##  So it will easily last  30 years.   Problem is, I have never been able to find
> it anywhere, and have casually looked over the last 15 years, to no avail. I anybody
> knows where to buy it, let us all know.
>
> ##  Dunno what GE put into the mix, but it was the best stuff out there. 30++ years
> of exposed to water, ice, UV, snow, dirt etc  is good enough for me.   It was also used
> to make a gamma  match for yagis, just by spraying it on the inner al tubing.
>
> Jim   VE7RF
>
>
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