Once applied, Fuse-n-Bond™ heat seal film is machine washable and dry cleanable. Peel & Stick Backing (Add 20% per unit) This paid option exists to eliminate the need to sew-on or iron-on patches to apparel, hats, and bags. The solid sheet adhesive means edge to edge coverage for appliqué shapes on quilts, wall hangings and attire without puckering or bunching. This means you have to use the heat seal machine. Instructions: Wash fabric first. Applying Patches with Heat Seal Glue Backing. Heatseal allows patch application to your garment via home iron. When patches with pin backings are created, we place the flat part of the pin in between the patch and its backing and leave the sharp part of the pin out. [gravityform id="6" title="false" description="false"], .