you can use any thread you like for quilting-as long as it is strong enough to not break constantly while trying to sew with it. people quilt with silk, cotton, poly, rayon, wool, isacord, metalics....what ever works that they like. it never hurts to try something new---the only thread i know of you can not use for machine work is hand quilting thread- which has a wax coating on it that does bad things to machines---beyond that you can use anything you want that works for you.