Topband: TOP HAT GUY WIRES

[R. Kline]

I've used ultra-violet resistant self-vulcanizaing tape for many years with
no apparent degradiation.  This was in 4X where ultra-violet intensity is
extremely strong. The tape was manufactured by "Scotch". I don't recall the
specific  catalog number, but  It was not an "el cheapo" tape.  It was
professional quality that was listed in the Scotch catalog as being
ultra-violet resistant. I bought it at a wholsaler for electricians'
supplies. I might add a word of caution. Some of the sulf-vulcanizing tapes
are slightly conductive.  I won't go into the reasons for that here, other
than saying that it is intentional and mentioned in the catalog.  So do
beware when choosing these materials.  You don't want to use the slightly
conductive tape in an RF field because you can get heating that damages the
tape (and may use up some energy - albeit usually not a significant amount).
I learned that lesson the hard way!
73,
Riki, K7NJ - 4X4NJ

-----Original Message-----
From: topband-bounces at contesting.com
[mailto:topband-bounces at contesting.com]On Behalf Of Larry Higgins
Sent: Sunday, September 05, 2004 11:52 PM
To: Topband
Subject: Re: Topband: TOP HAT GUY WIRES



> I forgot to mention that after using the conductive grease, I apply
> sel-vulcanizing electrician's tape.  This is the kind of tape where the
> rubber molds into itself and it becomes inseparable.  It's similar to
using
> "coax-seal" on connectors.
> 73,
> Riki K7NJ - 4X4NJ

Hi, Riki

I've used that rubber tape for years with excellent results.  However, it
will not withstand ultraviolet from sunlight.  For that reason the rubber
tape should be applied first and then covered with vinyl tape.

73

Larry, N9DX

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