[962porsche]

there is so much more to waterborne paints than just the gun .
so will your run of the mill spray gun work well yes to some degree . if it has metal in it it will rust in no time so if you plan on spraying it more than a hand full of times you will need a gun for waterborne paints . the tip and fluid caps are the same as you would use for a solvent base product but your going to want a gun made from plastic's and or stainless steel . check your TDS to see what tip size is best for the product your spraying .
most are a 1.2 to .14 tip in the gun but not all paint CO's are the same so again check your TDS .

but like i said there is so much more to it than just your gun . your air has to be not just clean and dry but very clean and dry any contaminants in your air supply will raise havoc with the finish . in my shop i have two desiccant dryers and i thought it would be fine with them but when i had the air supply checked it still was not as dry as it needed to be for my to have BASF sign me off for there color source user . so they added in a refrigerated air dryer too just for the air line to the spray booth . you need cool very dry air ! the compressor is a 10HP just for the booth and nothing else .
then there is the flashing off of the base coats . heat has nothing at all to do with drying the waterborne base coats you need air to dry it so you have to have air blowers BASF installed 4 of them in the booth one in each corner and then we have a proable set with 3 blowers on a stand that we can move around the booth as needed .

then you need all HVLP air lines and fittings right from the compressor to the gun if you don't you will never get your finish to look the way it should and you will end up with many other headeachs too .

if your a DYI person mail order solvent if you can't buy it in your area .