It is very easy to refinish your metal patio furniture, but it does require some steps. I would recommend going to a professional who has more prior experience with this topic, and requesting that they do it for you. However, if you want to refinish your metal patio furniture, you would have to cover you work area with newspapers, tarps, plastic bags to protect the surface and the floor. You would then have to remove any caps or tips from the furniture. It is important to put on the protective equipment, and then to remove the rust and peeling. This can take quite some time, and can be quite confusing to people. Therefore, I would recommend going to a trained professional to get this task done.