You could contact the manufacturer & see if they have any suggestions on how to remove their product. As someone else suggested, see if it's the type that will loosen w/ heat & steam. If that works, before you launder the glue away, ensure you put fusible on the wrong side of the fabric before laundering. I usually find it's best to put on my fusible BEFORE cutting out my pieces, as it keeps the edges from raveling & is easier to cut out.