Marine Goop will do a pretty good job of preventing ravelling, if the heat didn't. Goop seems to last for years, its flexible enough, you can thicken up the patch to suit. It can be removed with solvent if necessary.
Dacarls:
A-class USA 196, USA 21, H18, H16
"Nothing that's any good works by itself. You got to make the damn thing work"- Thomas Edison
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