I used the blue pounce on a yellow fabric and it DOES NOT come out unless you wash the quilt. Since the patches on my quilt were done by my grandmother almost 100 years ago - I was not going to wash it. So.. ended up scrubbing it off with OXY Clean. Since the border was new fabric, I could do that. Thank goodness I didn't use pounce on the old patches. Have not used it since.