Nov 12, 2018 - 06:45 AM
There could be a variety of reasons. One being the heat of your iron. Try ironing it from the back side of the patch and material as opposed to the top side. This way your iron heat will be closer to the back of the patch. Some materials are harder or take a higher heat in order to adhere to the patch. If you are still having problems ironing on, we recommend stitching around the patch for best adhesion to any material.