Ok, I had water spots on my car, and I have some Meguiar's Quick Detail Mist and Wipe stuff, but I have a question, Water spots are composed of calcium, lime, and other mineral deposits, right? So, when I spray the QD on the car, and start to rub it in as suggested, am I not making sandpaper? Does the hard water deposits, calcium, and lime turn into microscopic mineral sand paper on my cotton terry cloth towel rubbing up against my finish? If so, what should I do to correct this problem?