I saw a demo on the Superior Threads web site talking about fusible thread and how you could just "pull the top thread away after you fuse it in place with an iron," so I didn't think it was meant to be used as part of a permanent stitch. I'll take a quick look for the info and see if I can find a link for you.
Here's the info I saw:
http://www.superiorthreads.com/educa...t-for-applique
But you may be VERY interested in this one for
"Charlotte's Fusible Thread | Using It For Speedy Binding": http://www.superiorthreads.com/educa...speedy-binding