I use this glue when sewing on fabric that is washable. Adding a zipper? Instead of pinning which somewhat distorts the fabrics, I use this glue to hold the zipper in place until I get it sewn in. Working with plaids or matching designs? I glue the 2 pieces of fabric together until I get them sewn together -- a prefect match every time! When I am done, a quick wash and the glue is gone!