i have a quilt that my mil made - some of the fabric is fraying at the seams and i took sheer tulle and hand stitched it over the frayed places. it's not that old but some of the fabric has metallic thread and it doesn't hold up well. i have a quilt my grandmother made for me when i was very young maybe 70 yrs ago that is fraying in places that i need to do the same. i don't use that quilt now - it just hangs on a quilt hanger in my bedroom. i've read that black tulle is better to mend with than white. never tried it tho.