WARNING: Your iron will reach 400-degrees Fahrenheit. Do not attempt to iron your patches onto any material that will fail at this temperature. Satin, nylon, rayon, and other tri-acetate fabrics are known to melt at 400-degrees. Attempting to iron onto leather and artificial leathers will damage the fabric. Please see our special page about the dangers of ironing onto leather.
BE CERTAIN: Once you iron on a patch, it isn't coming off. If you follow the instructions on these pages, patches that have been ironed on will be just as secure as patches that have been sewn on. It is possible to remove patches once they have been ironed on, but they will leave behind a residue, so make sure you know exactly where you want your patch to be before you apply the iron for the first time.
FOR BEST RESULTS: You can warm up the back of the patch with a hair dryer until the backing becomes slightly tacky. This will allow you to place the patch where you want it, and the patch will not move during the ironing process. This helps for ironing onto pocket flaps, sleeves, or other areas that don't easily stay flat.
CLICK HERE FOR PAGE 3 OF THE INSTRUCTIONS