Z2 is made for clear-coated finishes, yet they talk about it "bonding with the pigment". Guess what, there is no pigment in clear coat - that's why it is clear.

Zaino makes claims of "molecular bonding". the only bonding between molecules short of chemical reactions I know about is solvation or plasticizing, and I certianly wouldn't putting solvents and plasticizers for the paint on any car. Although they would cause the paint to swell and hide small scratches that diffract light to give a shiny "wet" finish. However what may look good would really be very bad for your paint.

I have seen references to "99.99% optically perfect" Whatr does this mean? Optical properties usually deal with surface flatness or % transmission. If Zaino's product is not a wax, it does not leave a residual material, and hence cannot afffect surface flatness. It cannot have 99.99% transmission and a a "UV(40)" (usually this is assigned to topical preparations, not automotive products) but how can you absorb a significant % pof the incident UV radiation and still have 99.99% transmittance. These claims, in two consecutive sentences are mutually exclusive.

"We were rated #1 in Corvette World magazine and also Corvette Fever Magazine's product test of leading car polishes and waxes for highest gloss" Yes, and Lexol works great on leather. If I had a fiberglass car like the Corvette, this might mean something to me.

Note that Zaino always talks about "show cars". This should be a clue as to how much protection it provides. The real reason to wax a car is to render its surface hydrophobic, so that water cannot wet the surface and lead to corrosion. Waxes do this by providing a hydrophobic layer. UV is detrimental to any organic surface - be it paint, wax or skin as it is at the resonant frequency for the carbon-carbon bonds that make up all organic materials. UV is absorbed and finally causes enough vibration in the bond that it ruptures. Two facts are important here: (1) C-C bonds are broken and (2) that UV is absorbed by C-C bonds. Wax acts as a sacrificial layer -- it is consumed by exposure to UV light, but while it is being consumed, it absorbs UV energy and prevents it from reaching the surface of your paint. Rewaxing is a sign that the wax has done its job.

For my Z3 - I'm sticking with a good carnuba wax. Regarding my advice - I repeat, I have worked in surface preparation for semiconductor manufacturing for 22 years, and I am not selling anything.