Have you priced the two part epoxy or urethane paints lately? This stuff is cheaper than most of them. A pint is enough for at least two .40-.60 size planes IIRC, or one big scale model.

Yes, it does have a reducer for spraying but enamels can't be re-dissolved by the same solvent used to reduce them. Household latex is the same way. You reduce it with water but it doesn't wash off once it cures.

Countilaw- is it the high solids property that makes it heavy? I was thinking that I'd be removing a fair amount of the coating during the polishing process.