We in Canada by 2009 have to go to those water base paints. I'm not up to par on this for I have not worked in the autobody business for years, but still do the odd paint job. I plan to retire in a few years and get back to restorations. But I hear lots of stories on the waterbase paint. This was the first about it peeling.
Anyways. for the paint guns they say its a matter of buying another nozzle to adapt to the water paint. The other thing I was told was shops need a faster air flow for dry times. But this was told to me more so for the autobody shops that are trying to put the cars out as fast as they can. For your personal use you can take your time on drying between coats.
The thing that gets me up here in Canada is they want persons buying the paint has to have permits to purchase the paint. The reason for this I do notknow why and still need to find more about these changes. The reason for this paint is they claim for the enviroment. Which is understandable. I hope they give a few years for everyone to learn the new paint and techniques and proper usage. I don't like the permit rumor going around up here. It sounds likethey are trying to force everyone to pay the shops to do the work.

So if there is anyone from Canada more up on the changes to the paint for 2009 let me know or direct me to where I can look and read up about the changes for 2009 in Canada.

 

BMW and Mercedes have used waterborne systems from a while. From the information I've been reading lately and some of the instructors I've talked to, the gun isn't any different, it's just the option of being able to use a smaller tip, even down to a 1.0 to spray. You're right on the booth though, I've been told you can use air dry even with it, it just takes a bit longer to cure.