Originally Posted by JoanneS
Steam A Seam is water soluble, so if you use it with a quilt that will be washed, you do have to sew the binding.
It's not really water soluble as it does not dissolve in water and go away. It just releases in places like any other fusible web does when washed. The web remains (yuck). The edges of any fused fabric should be stitched if the fabric is to be wet at any time after fusing. If you do not stitch the edges, dry clean only (and label the work as such if you are not the final owner).