Wouldn't it be nice if you could buy the paint with the correct viscosity for spraying? Wondering if the paint store would do it for you if you asked? I hate dicking around with stuff like that.
They do!!
It is called 'rattle cans'. LOL!
Now days you need hardener, drier, catalyst, hardeners and them add clear coat and I guess its special solvents.
Long live good old enamels, you could thin it with just about any solvent including gasoline and still get a respectable finish as long as U used a decent primer.
Don't you get it? it is a conspiracy, all those additives needed only come in gallons so by the time you are ready to spray paint you have exceeded the price quoted by the body shop to spray that corner of your fender or lower door panel.
LOL, I once got lucky when I purchased an old Jeep Cherokee. It was all blue but for some reason the entire roof showed signs of light rust. I lightly sanded and BRUSHED on Tremclad medium blue (suitably thinned) and nobody ever noticed any difference nor brush strokes.
I know of an entire large aircraft (Viscount) that was brush painted and you had to be as close as 'on the stairs' to even notice a brush stroke. Naturally that was oil based enamel.
LOL, you have to be daring some times.
LOL, I once painted a VW using gasoline as thinner and the paint was even a very close match.
It was an 'off white' so I added drips of suitable color until I had an acceptable match,