Step 1:

Plug in your iron and set it to medium heat, between 250 and 300 degrees. Allow the iron to heat up.

Step 2:

Iron the area that you will be patching for about 8 seconds. Place the patch over the hole.

Step 3:

Place the iron on top of the patch and press down. Do not use any motion, just press down. Hold the iron in place for about 8 to 10 seconds. Lift the iron off the patch, and set it down on the end of your ironing board. Allow the patch to cool for a minute before touching it.

Step 4:

Pull lightly at the edges of the patch to see if it peels up. If it does not, your patching job is done. If it does peel up, iron the patch for another 8 to 10 seconds.