As I stated when I started this thread about 2 weeks ago Ive had STI line in
use since 1983 for all sorts of outdoor projects including boom supports. I
was looking for alternatives and went with Davis Dacron because they carried
1000' spools; being in the same state cut down on shipping and gave next day
service. The two brands look identical.
The longest runs these days is to support seperate 160, 80, and 75M inverted
v's with a common coax feed at 180' with the ends out to 300' or so from the
tower base. Several pieces are knotted together and takes all that Mother
Nature can toss at if from ice storms to hurricanes, microbursts,
N'oreasters, etc.
Carl
KM1H
----- Original Message -----
From: "Grant Saviers" <grants2@pacbell.net>
To: "topband" <topband@contesting.com>
Sent: Wednesday, September 17, 2014 5:54 PM
Subject: Re: Topband: [Bulk] Re: Outdoor rope suggestions
I've had real Synthetic Textiles lines up 10 years and more. Some in CA
sun, without significant degradation. OTOH, some "dacron" bought on ebay
is likely a dacron-polypro blend and lasted only a few years.
Grant KZ1W
On 9/17/2014 2:37 PM, Tom W8JI wrote:
In about 7 years that Dacron stuff starts to dry out and comes apart
slowly, Rots it in water like rain gutters.
Perhaps you are confusing it with something else, or you bought some fake
Chinese forgery?
Dacron rope (a trade name for a polyester rope derivative with less
stretch than nylon) is rated everywhere as being excellent for UV
resistance with good or excellent chemical resistance, mildew resistant,
and good abrasion resistance.
It is commonly used as a marine rope. I have some that has been up for 15
years in Georgia sunshine, and it was used when I installed it!
There are some inferior ropes out there. I bought some Wal-Mart Nylon
rope that had no UV resistance at all. It lasted less than a year, while
other Nylons last many years. The Wal-Mart made in China Nylon rope was
more like polypropylene.
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