One Day I’ll Have One…Here’s the low down on the waxes mentioned thus far.
NXT. Contains a significant amount of silicone oil. According to MSDS sheets, as much as 10%. Also contains cleaners and abrasives.
Liquid Glass. Contains 12% diatomaceous earth, an abrasive…also used as pool filter sand. Also contains 12% silicone oil. Here’s a link to the ingredients in case any one wishes to see it.
http://householdproducts.nlm.nih.gov/cgi-bin/household/brands?tbl=brands&id=12003001
Zaino. Synthetic. No abrasives, no silicone oil.
Many polishes/waxes use an abrasive as at least part of the cleaning agent. The problem with using abrasives on a regular basis is that each time you abrade the surface your paint gets that much thinner. Paint is very thin to begin with, and once the clear gets too thin…it fails. Only use abrasives, no matter how gentle when necessary. As often as some of us like to wax our cars…you can see how this could become a problem.
Silicones. The debate still rages over silicones and car care products, so I won’t go there for this topic. I will say that silicones are used in many products as they are great camouflaging agents that will hide swirls and minor defects. The problem is, they don’t last much longer than a wash or two and the problems resurface. They also do nothing to protect your paint.
Finally, PTFE…or Teflon. As discussed in other threads here…according to DuPont, the maker of Teflon….Teflon is worthless in a car care appearance product. It must be heated to 700 degrees to apply.
I'm with ViperJon..to each their own. I have never used Menzerna, as I am more than pleased with Zaino.
Hope this helps.