So, two things I'm trying to figure out with these high-ease-of-use ceramic sprays (Griot's 3-in-1, Gyeon CanCoat):
1. If I don't remove every last bit of wax first, will they still last longer than a good wax? Or might they be shorter-lived than a good wax?
2. If I just apply them 2-3 times over a year or so after some fairly normal decon each time, will they gradually replace any wax residue? Or will they fail to adhere properly until I do some more thorough surface prep?
I described my normal process
here. I use relatively gentle soap, albeit at fairly high concentrations (like 2x recommended in the foam gun reservoir, with max ratio). Trying to assess whether that's enough to get some benefit from these ceramic sprays vs. what I've been using, or if I need to do more (and if so, what).