The whole water based paint thing is a sham.
Everybody thinks they are saving the environment with water based paints, but in reality it really isn't all that different.
The old "Two Stage" as its known is a standard non catalyzed pigment coat with a catalyzed, usually urethane, clear coat. The old pigment coats don't have any of the nasty volatile compounds or isocyanates. They are all in the clear.
The new environmentally friendly "water based" process replaces the pigment coat with a water based paint, but still uses the nasty clear coat.
Lately, it seems as though many people don't actually care about doing good, only looking like they are doing good.
Royce