I want to put an Alclad aluminium finish on an A wing. That requires a gloss black primer. So far I've done the following:
Soaked for 3 days in Purple Power. Removed wash.
Soaked for 3 days in Simple Green. No effect.
Soaked for 3 days in bleach. No effect.
Soaked for 3 days in 93% IPA. No effect.
Soaked for 2 days in oven cleaner. Guns and engine fell off. Paint remained.
I also used a small ultrasonic cleaner during each of these steps though not for the full duration. This is the first time in 40+ years that I've failed at removing paint. Anyone have an idea of the kind of paint that's on the A-wing? Short of using lacquer solvent or acetone which will attack the plastic, I'm at a loss.