This is just a personal opinion, not to be confused with fact. Please keep this in mind.
I despise water-borne paints and the day they become the only thing available is the day I sell my spray guns and quit painting. If I were a blunt man I'd simply say they ****, but that wouldn't be much of an answer. They dry slowly and bond poorly.
Now its true that I have very very little experience with the stuff, which is in its own way surprising because at one time I was really hot to use them - that was before I actually did use them of course. It is a straight forward fact that I honestly believe that people have a right to breath air not fouled with the nastiest of poisons by their neighbors, so clean air laws and rules are perfectly legitimate, desirable, and in fact necessary.
This is not a political position either, I'm not one of those idiot tea-baggers that thinks that every modernization is an assault by satan against the chosen people. I am not against the laws or Agency (EPA) that moved us toward water-borne. I support the march toward a cleaner planet entirely so its not the Agency that is trying to clean up the atmosphere that I am against its the ****-poor solution that the paint industry gave us.
At any rate about two years ago I painted a motorcycle (Sportster) using Auto Air Color's water-borne junk. Actually I painted that bike twice with the stuff because the first job came up with a severe case of solvent pop. So I painted it the first time and then a couple of days later I sanded it all back off. By the way, sanding the stuff off was like trying to sand the treads off a tire; like trying to sand moss off a rock. So then I painted it a second time with the stuff. The painted started lifting about a week later. The tank just plain grew what started as a pimple right on the top. Every time it got warm the pimple turned into a boil and I just got madder and madder. A week after that the second paint job came off. The next thing I did was take the tins back to bare metal and the AA paint to the trash can. I've never bought another ounce of the stuff and have never been tempted to try it again.
Bet you didn't expect that answer. Also, I am well aware that it flies in the face of common thought on the stuff. I am told the stuff has got better since I tried it, I am told that all the auto manufacturers use it now. I honestly don't care. If my dear departed grandmother came down from the pearly gates of heaven today and told me "Kong, you really ought to try the stuff again" I'd tell her 'no grandmaw, I just can'd do it. I love you dearly and always have done exactly as you say, but I'd cut off my own ear before I'd use that crap again'.
On Edit: Please understand, this was written early in the morning, and I'm not a very nice ape early in the morning so take it with a grain of salt. :freak: