Hi Folks,
For those that have asked, here is the contact information for The Minute-Men patching.
He is mainly known for his teflon coated patching, but I buy his plain untreated patching. Mainly the .018.
It is 100% cotton canvas patching, and very densely woven. I have never burned through any.
It may take a bit for him to reply, but it's worth the wait.
I hope this helps. God Bless, Marc