I refinished two sets of winter wheels, one set with an Einszett silver color coat and clear, the other with a duplicolor anthracite color and clear. Both sets were prepped the same, applied in similar conditions and the wheels are now being used in similar conditions (crappy winter weather, salted roads, etc.). The Einszett still looks new after nearly 5 years with the exception of the brake dust (its winter, I can't wash wheels with when its below freezing). The Duplicolor looked weathered as soon as it dried and has been slowly flaking off over the years to the point that when I put new winter rubber on, I'll be refinishing them again. I know which paint I won't be using.
. Anyway the owner decided one day to try the Duplicolor paint shop system on a unit I was going to paint for them because it was "cheaper". Mind you I would normaly spray in thier shop so I wouldn't have to worry about bringing those chariots of death to my place, so I told the owner to sit in with me to check out the progress, I knew how this was going to go and he had seen me paint before using what I wanted. After one and a half gallons of white of the 'cheap' Duplicolor and still no nice shine (for what I charged I was NOT sanding and buffing, after all its an ambulance, ever pay attention to one up close?) and it also wasn't covering. Needless to say somebody learned a valuable lesson, cheaper ain't always better, I had to redo that truck and use the product I wanted to use, guess how much of the lesser priced Dupont Nason line took to paint that ambulance? Around 3 quarts and it looked great for an ambulance.