Converting Harvey into a DMU

Thanks Chrisjo, I didn't know that. It says it resists most solvents and yet simple window cleaner will remove it. Have you used this and if so how did you apply it?

Ammonia = window cleaner (if I remember rightly. Is that what it says?). By airbrush for a clear gloss coat, by brush for seating decals, or by dipping for clear polystyrene or acetate glazing pieces - like this: