Join Date: Oct 2000
Location: Portland, OR
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A sharp pencil...
Many years ago I learned of a quick and non-technical way to test the leach-cover stitching on a dacron sail.
"The Pencil Test"
Take a sharp #2 pencil and try to run it under the stitching... if the pencil lead breaks, it passes, and if the stitching breaks, time for a restitch (at the least...)
I tried it and it indeed proved that the threads that were holding the sacrificial UV leach cover on our RF genny were at the end of their life. Obvious, quick, and easy.
Rest of the sail, rolled up and safe from UV, was fine, by the way. New leach cover was attached.
Last edited by olson34; 06-02-2012 at 12:14 PM.