For the time it was a quick, dependable way to color the metal and millions of them were painted this way. As far as I can tell, this did not hurt sales because lets face it, kids just didn't care and weren't critiquing paint jobs. Today's baby boomers who, by the way were those same kids 40 and 50 years ago, have a much higher standard. They want them to look good whether sitting on the desk at work, on a shelf in the office, or perhaps the den at home. These toys come to us in a variety of conditions, though most of these are restorable we do not willingly accept rusted through or otherwise badly damaged toys for restoration.
All toys are completely disassembled and broken down to their smallest respective pieces.
Metal that will be repainted is then coated with a rust preventive primer and wet sanded. Finally all other parts are painted with three coats of Custom Matched Dupont Automotive Acrylic Enamel. The finished parts are reassembled and checked for flaws. These are very small particles and probably will not be noticed under any reasonable inspection. If you require a perfect finish then please contact NASA and they may be able to paint it for you in space.