If this is put on properly - it will do the job.  I have used it to mend a pillow case  and sheet where where the stitching had come undone and I was too lazy to get out my sewing machine. I have used it for hemming dollies, different clothes items, and then I decided to decorate my bath towels.  I had some colorful trims that I have had for years and decided to decorate my plain bath towels - So -  I ironed on the trim using Stitch Witchery.