The chemistry is quite clear, nylon has very poor UV resistance indeed. This
may not be manifest in WA, but in FL you'd be lucky to get one summer out of
it!
Bottom line is no contest, polyester every time!
73
Clive
GW3NJW
-----Original Message-----
From: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com]On Behalf Of CubexCo@aol.com
Sent: 23 February 2006 01:39
To: towertalk@contesting.com
Subject: [TowerTalk] Polyester vs Nylon - no contest
In a message dated 2/22/2006 12:06:39 PM Eastern Standard Time,
towertalk-request@contesting.com writes:
I'm not going over a tree branch. I'm going through they eye of a ceramic
insulator. The ceramic insulators I use are very smooth. The real point is
that 3/8" nylon rope outlasts the 3/16" dacron/polyster at my QTH. 3/16"
Dacron/polyester: 1 year. 3/8" Nylon: 10+ years.
Clay W7CE
==================================
I think that if you had a equivalent diameter Dacron/Polyester it would
outlast the nylon and not stretch as Nylon is prone to do. The Nylon rope
diameter being double that of the Dacron/polyester results in 4 times the
cross
section, not a valid comparison. My experience with small 3/32" polyester
holding up 80 dipole. lines looped through trees on both ends, survived
three direct
hit Hurricanes, lost tree limbs that brought the line down, recovered it,
and
shot it over what was left of the tree and still doing well. It is tough
stuff.
Regards,
Norm W4QN
"The Power of a Cubex Quad"
http://www.cubex.com/
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