Fusible thread?
 

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

Years ago I tried fusible thread for this application and it did not work well for me. The problem is not what you think it is, as yes the fusible thread is strong enough to keep the line of stitching in place. The problem is that a single straight line of fusible thread is not enough to hold the binding in place once you iron. Fusible thread works best when it is in a zigzag pattern, which is not really feasible if you are sewing a binding to a quilt. With a zigzag, there is more fusible to melt when you apply the iron, so it becomes strong enough to hold the binding in place.

What I would advise instead is to sew the binding on as usual, then use Elmer's washable school glue to hold the binding in place until you sew. Sharon Schamber has an excellent video on Youtube showing how to do this. Basically you place small dots of glue on the binding, fold it over to where you want it, then iron to make the glue solid. This is trong enough to hold the binding in place until you sew, and the glue washes out when you are done.

Superior Threads talks about using it in the bobbin and attaching The binding to the back using a zigzag stitch. Now you turn the binding to the front and press, 4-6 inches at a time, to bond the binding to the invisible thread. The corner meters are pinned into place. Then sew the binding down from the front (it doesn't say, but I assume you switch to a normal bobbin thread at this point), using a decorative stitch if you so desire, since it does say that the thread forms a temporary bond.

I have used fusible thread in a very different way.
After you have sewn the binding to the front I lay a strait line of fusible thread on the stitching line on the back and press the binding down on it. This holds it in place without pins till you sew it down.
The only flaw is you cannot see the stitch line as you sew the binding down so I recommend a decorative stitch.
I just started using those red clips to hold down the binding instead of pins so now I can still follow my stitch line as I remove the clips.
I hate doing bindings and refuse to hand stitch so Im always trying something new.

I used this thread last night and loved it. I followed these directions https://www.superiorthreads.com/educ...speedy-binding except for one change. I wasn't sure about attaching the binding using a zigzag stitch so I attached it to the back of the quilt as usual and then did a zigzag down each edge. Pulled the binding to the front just over my binding seam and pressed. It worked like a charm! I put a pin in each mitered corner just for safekeeping and sewed it down from the front just inside the binding edge. Most of it ended up in the ditch on the back. Best looking machine binding I've ever done.