L
Linda B. I haven't had to use it, yet, but a slight edge of the patch accidentally touched some paper, while the backing was still on, and the sticky part adhered to the paper and that was that, lol. I was able to salvage most of the remaining patch, but did sacrifice a bit of it to the paper. It barely touched it and there was no reversing that. I hope I don't need to use it, but feel like it will work pretty well if I do.