I have to admit I was rather surprised to learn that paints such as Lustrekote are acrylic lacquer based paints. My impression of lacquer is that it wouldn't be very durable in the absence of a clear coat. Heck, one can wet sand it to "leak" the pigments with nothing other than cold water!

I'd be a little weary of having a glow or gas engine model painted with lacquer without a chemical resistant top coat.

But kudos to you Chris for keeping those models free from the effects of fuel!

David.