Ok longarmers, what is your favourite thread? Poly or cotton? Where do you buy... Kawartha Quilting and SewingFeb 23, 2015 Ok longarmers, what is your favourite thread? Poly or cotton? Where do you buy it? Previous articleNext article Join our mailing list! Signup for our newsletter to receive information about upcoming events, classes and promotions! Your email Subscribe100% free, Unsubscribe any time! Follow us