Just to add here as I posted somewhere before, the latest greatest larger systems do deal with inherent heat issues far better than the early stuff, but still not there yet where I'd picture a professional shop using them for complete paint jobs any time in the near future, though they are decent for small repairs.
I got a titan 6 stage unit mainly for commercial waterbourne acrylic paints at work (painting entrance doors & windows) because I couldn't get the pressure assisted gravity feed gun I was wanting. Even with these paints I have to add floetrol & or glycol alcohol additives to slow things down or risk ( paint buggers) & or gun clogging, variable by weather temps. I actually added a little denatured alcohol a few times in winter mornings to speed drying , with heat in room, to have to flip flop back to slowing it that afternoon. One fast drying waterbourne I recently switched to clear just would not quit having paint boogers & had to go back to pneumatic.
Very external tip of gun is first part to clog, a small rag with appropriate solvent should be nearby as needed.
There are ways to reduce heat transfer from units. A large unit with enough pressure to support a longer hose will help according to Titan tech support, as will their 2 quart remote pot you hang on your belt. Haven't tried yet, but common sense says putting unit in cooler spot such as in front of ac unit will help, as would having beginning of hose dip into ice water.
I will post back here later when I do try with automotive clear & with epoxy, which may be the best use for a turbine with automotive products.