Modifying or repairing a wool tallis katan with non-wool thread Home › Forums › Bais Medrash › Modifying or repairing a wool tallis katan with non-wool thread This topic has 1 reply, 3 voices, and was last updated 6 years, 11 months ago by Gadolhadorah. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts December 18, 2017 8:23 pm at 8:23 pm #1429650 DovidBTParticipant I have a tallis katan. The garment and the tzitzis/strings are wool. It’s a v-neck design, and the neck opening is much deeper than I wanted. Is there any issue with reducing the size of the neck opening using non-wool thread, i.e. generic thread that’s labelled “polyester”? The same question would apply, I suppose, to repairing a tear in the garment. December 18, 2017 10:31 pm at 10:31 pm #1429767 Takes2-2tangoParticipant Afaik it wont be a problem but ask your LOR December 18, 2017 11:32 pm at 11:32 pm #1429765 GadolhadorahParticipant As always, check with your local rav/posek but I’m sure we can get a few of the resident CR poskim to provide a completely contrarian set of opinions on shatnes 101. Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In