Pretreatment and Prep are one of the most vital things to do during powder coating. There is actually science to it. It makes a difference what kind of metal you are working with. Is it galvanized or non galvanized and so many other things you do not need to worry about. That is our job. We will pretreat every job up to spec to make sure the powder is applied to a clean surface for better adhering and long lasting coating.