My final words on the subject- If you have found a rattle can product that you like and are happy with the results, I'm happy for you. That just hasn't been my experience. I understand why guys reach for it especially if working in basement shops or smaller work areas or walking outside to quickly spray something.... I get it. Even when I worked in a basement shop I had a good quality exhaust fan so that I could gloss fish safely and quickly us. I built a garden shed a few steps beyond the walk out door where I could move the fish as I glossed them to the shed to dry overnight without stinking up the house or having to run a fan for extended periods. I think there is some great mis-conception about how long it takes to use automotive. Using a calibrated cup you pour the urethane up to a numbered level, pour the hardner up to the same number above, stir it with a stick pour it in the cheap harbor freight spray gun and spray. When done, dump out any leftover into a can, add acetone, shake the sprayer and spray a couple times. Pour out the acetone and put in clean acetone or lacquer, spray a couple times and then hang the sprayer on the wall. I won't completely clean the gun once or times a year. If you keep solvent in it there is no need. Marty I don't think you are going to convince anyone who currently uses automotive to switch back to rattle can paint and I'm not here to try to convince anyone to make the change the other way. Every time I reach for rattle can it's usually because I'm doing a single fish that needs glossing today and, I almost always regret it. I can see the difference and in the end there is no real time savings even for one fish, not when you have to do multiple coats to get good results.