Different brand name (too complicated to go into) lets just leave it at AQuartz was the first to market it and then C. Quartz (Carpro) entered the arena and a slightly different formulation
I have not used AQuartz but have had good success with CQuartz. There seems to be a bit of a feud going on with proponents of each (even on this forum there are CQuartz supporters and AQuartz supporters). I will definitely try AQuartz so I can make my own assessment as no one can really clarify the difference well and supporters of each will tell you why one is better than the other but without a lot of support as to why. Some will say CQuartz is easier to apply, others will say AQuartz. Some will say AQuartz is better for water spots, others will say CQuartz is great. Jury is still out on ultimate durability. To be honest, it is a little confusing to say the least without a lot of factual support. So, I have CQuartz on now (two coats) and will let that run through the winter with Reload topping it every 2 months. Next spring, I will do a full detail and try AQuartz. I do have to say that I personally found CQuartz to be VERY easy to work with, sheeting and beading is exceptional, the ability to shed dirt with a simple rinse has been surprisingly strong. I have had some wash induced marring but I don't believe that either would have prevented it. Anyway... next up at bat... AQuartz
