That is why instead of spraying a car with water and watching the beads just sit there, especially when talking to a potential customer. I just get cup of water and pour it on the paint and show them how the car pretty much dries itself on my own car. I suggested this back when I came on here, but people didn't like it very much so I just left it at that. I still do this method, instead of beading and letting the water sit on my paint, I prefer to sheet the water and getting everything and anything off my paint, but to each there own. Plus when you pour a cup of water you can show them how the car's paint will look once corrected. People didn't really like that either, oh well can't please everyone
Art