cquartz uk is the united kindom version of their ceramic coating; it's NOT spray on-wipe off. The paint needs to be pristine, since any oxidation or swirls will be under the coating if you don't clean them up first. I can do my own paint correction, but didn't get very aggressive with it (I idn't smooth out the factory paint's orange peel, for example, since that takes away too much clear coat).
After paint correction, you should de-grease and decontaminate the paint so that the ceramic coating bonds to the paint carpro's products for that are eraser and ironX.
After THAT, the coating goes on. 1 ounce will do my car twice; it's a very thin, but hard, coating. After a bit of cure time, another coat of cquartz; then after three days, I topped it with essence plus and reload
Essence plus is a topper for cquartz that can repair ceramic coatings, it buffs in by hand or machine, and wipes off very very very easily
Reload is the spray-on-wipe-off top coat for cquartz; kind of like a detailing spray, only for ceramic coatings