I’m not the guy doing it, but here’s what my buddy told me. First they wash and strip all the old wax off. After that they clay bar the whole car and buff it all out. Then they do Paint correction and get all the impurities out. The paint has to be like glass before they put the ceramic on it. Here’s my car now. There is No Wax on this car. The ceramic hadn’t been put on it yet. This is just buffed out clean paint