Paint cleaner won't do it. You're going to have to
clay. If the
Clay Magic you are using is blue, you're ok. Don't use the red, it's equivalent to 1000 grit sandpaper, and is for heavy contamination, like overspray.
As for #7 or #9, you are correct. #7 is a glaze, with some cleaning and filling properties. It will not remove any swirls, but cover them up. In my opinion, it's only good if you're going to wax over it. But if you're going to use
Klasse, then I would use #9. You're going to have to really work it in though. Heavily pressure at first, then less and less until the product is almost dry. Then wipe off. It also has some fillers, so if you're going to Klasse over it, as long as you use
AIO first, you'll be ok, but you could just dawn wash again and go straight to
SG if you need.
And Jngrbrdman is right, you cannot do several layers of SG on the same day. It would cure properly and you'll just be wasting your time and product. What I have found best is 2 coats, wait a week, and then another. The reason for 2 coats is that it gives you better coverage, in case you missed any spots. Believe me, it'll start to look great the second week. I just did that to my GF's car with #20 and it looks amazing for a beater. Just wash with mild car soap and dry and you're good to go, for the subsequent layers.
