HPR

Thanks to all for the replies and the education.

I have been given lots of sewing thread. Can it be used to tie flies? From the labels on the ends. Mercerizi cotton covered polyester - x fine, x strong Invisible thread - very fine, will melt with hot iron. Polyester Cotton glaze finish Mercerized cotton supper sheen Mercerized sewing Mormlycke spun syntet Bee waxed mercerized cotton Bee waxed poly bond Boilfast mercerized