I think I found a difference between UK and Finest.
But before going into that I did some research for the SiO2 and TiO2 and found the following:
SiO2 (
Facts About Sio2 Liquid Glass Coatings) - Used for its hardness and UV protection.
TiO2 (
http://www.icis.com/resources/news/2007/11/07/9076546/titanium-dioxide-tio2-uses-and-market-data/) - Used for its high reflective properties, thus, better UV protection.
Moving to CQUK
According to (
https://carpro.uk.com/products/cquartz-uk-edition-30ml-kit-w-reload) it has 70% of SiO2 (suppose to be the coating with highest content of SiO2 on the market, so I don't get it when you say that Finest has a greater content of silica) Also, it say thickness is 1-2.5microns. So why does the thickness varies? Does it depends on how many layers you add?
Moving to CQFinest
According to their website the thickness ranges from 2-3microns. So, does having a thicker coat means better protection? And according to the frequently ask questions (
FAQ - CQUARTZ Finest) the difference between CQ and Finest is:
"The short answer is just about everything. There are many differences between CQuartz and CQ Finest. While both are glass coatings Finest offers greater gloss, dust and dirt resistance, fine swirl resistance, a slick to the touch feel, more resistance to water spots and the environment, and FINEST is offered only through Authorized Installers who have developed their skills and take the utmost pride in their work."
The problem that I see here is "UK". It is talking about CQuartz (Im assuming CQ Classic and not CQUK). So, is there's really a difference between UK and Finest?
After researching a bit more I found a research between SiO2 and SiO2 w/TiO2 (
https://www.researchgate.net/public...Synthesis_and_variable_UV-blocking_properties) and it seems that the difference is better UV protection with SiO2/TiO2.
Since Finest is part SiO2 and TiO2, is it really worth the high cost for "extra" UV protection? Cause you can really proof what they claim that the difference between CQ and Finest is basically everything.