Fstbbms, I am glad you were able to give Crazy Dave the kind of informative answer based on actual experience with the product that he was seeking.OK, I did a search of e-mails I had with the owner of the J/120 that briefly used the nano coating I mentioned. It turns out that the product was developed by a company from Morgan Hill called "Syntropic Solutions." That company is now called "Cyntropic Solutions" and guess what? They own Coval Molecular Coatings. Coval Molecular makes a line of products called "TruNano" and now that I see that, I remember that the product I dealt with in 2011 was called "TruNano Marine Armor." Coval Molecular no longer has a marine coating in their TruNano line, but they do have one called "Coval Marine and Hull Coat," which I assume is the product you're considering. Is it the same product that I had experience with? I guess that only they could tell you. What I can tell you is that the Marine Armor product failed miserably.
Here is a thread about it from Sailing Anarchy, including a response from a company representative:
http://forums.sailinganarchy.com/index.php?showtopic=126103
This is the reason I am documenting my experience with using 100 percent acrylic exterior house paint on the exterior surface of a sailboat.