Date: Fri, 30 May 2014 11:43:20 -0400
From: "Ray, W4BYG" <w4byg@att.net>
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] UV resistant wire ties
I've had good service life (professionally), out of black ties made by
Panduit, or Thomas and Betts.
Anything not made with carbon black will basically disintegrate outside in a
year or so. Most of the cheapie "imports" are very questionable.
At the risk of starting another antidotal thread: white schedule 40 PVC pipe
outside suffers from the same problem. Only because it is thicker, does it
usually last a little longer. But it to will eventually dry out, get
brittle and disintegrate.
Ray, W4BYG
## I believe the telcos use T+B black ones for all outside use..but it may
be
another brand. I would contact your local telco folks and ask them....or snag
one of the outside guys if you see their splice trucks and ladder trucks on the
side of a road.
## Instead of white PVC... you could use the grey PVC...available in mist
home depot
stores. Its usually in the electrical dept. Comes in 10-12 foot
lengths...and is flared
at one end..so you can join em nose to tail. That stuff is UV resistant.
F12 uses the smaller
sizes to insulate the els from the booms. F12 also used the super thin
white pvc on
my 20m yagi..which is still holding up just fine. My 15m yagi used the thick
grey pvc .
Jim VE7RF
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