The answer is right in the response I stated. It should work. However I would try a test piece. Both of those paints are mechanical bond paints. Scuff it up first with gray scotch bright (600) as stated it is mechanical bond. It needs tooth to stick. I do something that is not suppose to be done ,like putting Urethane (mechanical bond) over dope (chemical bond) I do it all the time with no ill effects. I don't think it would matter to do it the other way around either. Meaning catalyzed paint under dope. Except it would be difficult to make it stick. I hope this has now answered you question.
Dopes and Lacquers are chem bond
enamels and urethanes are mechanical. So what I am saying is if the paints are of like types the should work together.
In the old days of Aero Gloss you can paint Sig or Randolf over it but never Aero over anything as it has MEK in it.