Originally Posted By: Dwight_Frye
I swear by Zaino but with a few qualifying statements. It works best on a brand new car or at least a brand new paint job. It is very labor intensive for the initial treatment which means stripping any dealer applied wax, a clay bar treatment, wash car again to get any clay residue off, and then a couple or three coats of Zaino. As others have mentioned it's an all weekend process. However, I've been lazy and have not reapplied Zaino now for 2 years and my car still looks great and I get compliments almost daily. I am in SouCal where it hardly ever rains and we sure don't get snow. The car is covered during the day and garaged at night so leads a fairly pampered life. I'll probably put a couple of fresh coats on it in the next month. In my case, the initial labor involved was well worth it and only having to reapply a couple of thin coats annually (without the clay bar routine again, it's just like applying regular wax and it wipes off easily) is a great time saver.
That sounds like a lot more trouble than it's worth.
I recently applied CQuartz UK onto a car and it takes 30 min, and will provide better/longer protection (24+ mo). The gloss and depth is on-par with carnaubas, IMO.
I truly believe that the Zaino system is an outdated approach compared to the modern coatings available.
Lastly, the last-stage product should have a minimal impact on the finish. The appearance should be dictated by the success of the paint correction process.