Let me state I did not read all the threads above but I have been using Duplicolor for years paining model aircraft and bicycles. The pre thinned quart cans are nothing like the spray can paints. The spray can paints have a much higher solids in them and they cover almost anything. The Quarts must be put over grey,white or silver base to get them to perform well. I have used grey primer for years. The paint will get hard in just a few days. I have always used some type of clear on it. I found there spray cans to get hard in one week. Be care full to use only there lacquer paint over lacquer primer. Any two part clear will go over the Duplicolor. Another good source of color is .Randolph dope from Aircraft supply. You must use a Lacquer thinner with it. T did use a compressor and small gun for all of these paint jobs.

Here is a original 7/11 repaired and repainted with Dupicolor red over white base.