It’s a tad weird the CV-1 as much as I played didn’t show any dull spots from the arm like the others .
I'm gonna take a guess it's due to formulation AND being 10 years old, plenty of time to have outgassed off a lot of the solvents.
So a much harder surface when you started on it, probably much more resistant to permeation of the acids that will soften it up and make it dull.
A while back maybe about a year ago, TXbumper mentioned his belief that NCL was "microporous", IIRC.
I didn't get it then, but after thinking about it for a while, I can see there must be some way that the solvent gasses can continue to escape continuously so my current hypothesis is that the surface will tend to crystallize first, but there are still little capillaries that remain open, allowing the deeper solvents to escape. Maybe it's the presence of the solvent itself that keeps the capillaries open until they finally harden up as well, when enough solvent gasses have finally dissipated.
My Wilborn cleaned up spotless . Ben must have a way to cure his NCL as there was absolutely no off gassing like the F55 had and I’m thinking it needed more set up time .
Remember there are different formulations and the 2 prime variables will be how much solids are in it, and what the mix of solvents and plasticizers are.***
Or it might just actually be that he lets 'em dry longer than usual between coats..or has learned other tricks over the years that let him do a better job than a production line could.
HE could probably tell you.
Over all the F55 cleared up pretty good except a little spot that I can buff out.
Still suggest waiting a while before attempting buffing, give it time to harden up again, at least 3 months.
***Example: I'm absolutely positive the stuff they sell in aerosol cans from StewMac today will not be the same stuff they used in Tacoma in '07 or in Oxnard right now.