Rick on speed! Your Triplane show here is unbelievable!
How do you strip the paint without damaging your work?
Willem, I have made also good experience with normal alcohol (in german "Spiritus", a cheap undrinkable alcohol for cleaning) for acrylic paints, e.g. Gunze Hxxx, Tamiya or Mr. Paint. Even with oil stripes on top the alcohol goes a bit trough are solves the paint below.
If I so not rub to strong with cotton tab my Alclad Primer survives such attack.
I suggest to use a cheap model kit for testing paints, airbrush, brushes and ... cleaning
Cheers,
Frank