Oooh. No haven't heard of it. I likes the concept tho. Do you think that it would stand up to something that gets moved around a lot (kitchen curtains)?
Look in the notions or fabric section for StitchWitchery. It comes in packages of 1 or 2 rolls. Not very expensive. Beware of imitators.
Try it out on a sample of your fabric. It’s easy to correct errors - not good for seams, but is terrific for hems...especially on table cloths, pants and curtains.
Washable too! (no I don’t own stock)!