RE: Painting Weedies?Your experiences/opinions please?
It's strictly Physics, some objects (paint pigments in this case) only absorb some of the wavelenghts of light that impinges on it, the reflected light gives the object its color. Black on the other hand absorbs all the wavelenghts and reflect none (in real life very little). Since heat is Infrared Radiation it is absorbed by the paint very well, and reradiated into the cooler space beyond it, much more efficently then a coating of alumium oxide will. It's one of those particle/wave duality things.
Steve