Bruce Wilson wrote:
Of course it needs to last for decades or more in
the sun.

Like Roy says... good luck... Better be some really UV
resistant stuff if you want it to last decades.

As always, if you have suggestions that haven't occurred to me I'll gladly
listen to them.

Myself, I use antenna support *wire*. And that will last for decades.
But another reason I do that, is often I lengthen the antenna wires
for other bands. Fer instance, at the moment I'm using an 80 meter
turnstile, which are crossed dipoles, and also a 40 meter dipole,
all fed parallel with one coax. But two of the 80m wires can be
doubled to act as a 160m dipole, and also I have a set of jumpers
to use it for 20m. So by just changing the locations of the
insulators,
I can change things around according to season. I can have the present

setup, or I can have 80,40,20, or I can have 160,80,40. The latter is
the usual "winter" mode. My wires including the support wires are
so strong they will crumple the top section of mast before the
wire breaks. I had that happen when a large tree branch fell on a
leg in an ice storm. The wire didn't break. But it bent the top mast
section over, and I had to replace it. That was cheap though, as
I use an extra top mast section which is not part of the actual
telescoping mast. Sure, fresh rope is just as good, but it won't last
as long as the wire. Mine is insulated also, so that helps to prevent

corrosion. I don't see why it wouldn't work in a pully as long as it
didn't kink up on you.
MK