DuPont "IMRON" was the original acrylic urethane paint, which was eventually copied by other manufacturers once the patent expired. I remember a "gallon" of IMRON being 3 quarts of color, and a quart of activator. There were a few proprietary colors- - - -DuPont made no effort to match any OEM shades. One of the first uses of the stuff was on crop duster airplanes, where the chemicals they sprayed would eat normal paint like popcorn. Once mixed, there was about a 12 hour pot life before the paint became solid, regardless of the thickness of the coat. A friend ruined a very expensive paint gun by leaving activated IMRON in it overnight. The next morning he found that all the paint in the cup, and in every passage in the gun had gotten rock solid! At that time, back in the early 1970s, there was no stripper or solvent known that would remove IMRON- - - -it had to be sanded off.
Jerry
