White polystyrene picnic spoons worked quite well for us in high school.
Polystyrene has a high dielectric coefficient but may be too brittle.
It was simple to heat the wire with a candle and push it into the plastic.
Lasted several years until the ladder line broke up at the dipole.
----------
From: w8ji.tom <w8ji.tom@MCIONE.com>
To: towertalk@contesting.com
Subject: [TowerTalk] Insulator life question
To: <towertalk@contesting.com>
Date: Friday, August 28, 1998 1:27 PM
I want to make spreaders for open wire line. My plan is to have a CNC
machine punch out several hundred spacers with slots for the main wire and
holes for a small tie wire. I'm going to try and make the spreader so it
just snaps over the line tightly, because I have so many to install.
Would Lexan be a good choice for life and ability to be punched, or some
other material better? The sun is a major worry here in the south. I also
want a material that won't break, absorb water, or a rough or abrasive
surface that bonds with dirt and stuff. I'd like it to be slick.
73 Tom
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