Peckish, thank you for posting this site. I knew I had read it somewhere, but could not bring it up in my mind. I have and do use poly threads and have never had a melting issues with them. They are stronger than 100% cotton threads so I don't have stitches popping and breaking when I sit down on a quilt which is on a bed.
All I use on my longarm are poly, cotton wrapped poly or poly wrapped cotton. I learned serveral years ago that the 100% cotton threads would break with just normal wear and tear on a quilt.
Originally Posted by
Peckish
Bob from Superior Threads discusses this topic in his classes. If you ever get the chance to take a class, I highly recommend it. They are free, he does NOT do a "hard sell" to get to to buy his product, and they are very entertaining and informative. There is quite a bit of information on the "education" tab of Superior's website. This page is where he discusses the "cotton vs poly" debate.
http://www.superiorthreads.com/educa...zing-substance