I've never done a repainting of an item before, so pardon what may be seem as an easy question.
I have O and HO models of the famed Fishbowl buses from the 1960s and 1970s. At the 1:43 size, I have both the Green and Two-Tone Blue liveries that the New York MTA used. I also have two HO Scale Green ones from Busch, one of which I want to try and paint blue. These fishbowls bring back memories of my childhood whenever I look at them. The HO model is basic plastic with a gloss finish and looks like it was produced in that green color so there isn't (or is?) any green paint to be removed.
I figure that I might need to use a very fine grit sand paper on the bus to provide some adhesion for the paint.
So question is should I use rattle can or brush? Acrylic or Enamel?
My test subject will be a Busch green bus that I've had for a decade plus when I first started back in model railroading with HO. It's current state is perfect to be stored in a bus graveyard as the tires and wheels have long since been lost. Maybe I should beat it up a bit, break a few windows and weather it.
Once I've proven to myself that I can get it done, I will buy another Busch model and do it in the two-tone blue if the test subject doesn't satisfy me as fit for placing on a layout or display.