I think I'll do a test wash and see what actually happens with the fabric I'm using. I did try to see if it'll dissolve in water and it didn't. Maybe there are different brands that "disappear" and others not so.
I use this type too and it washes completely away. No wads at the bottom of the pocket! Hugs. Nan W
If it is the same stabilizer you can use on Towels I would say it would disappear. You could always cut a piece and put it in a dish with water and see what happens.
Really do not know, but I would assume since it is called a wash away that it would do just that.