oadie wrote:
White sprays tend to cause more issues with grainy finishes than other colors. Must be something about the pigmentation. Regardless of brand, the solution is almost always to spray closer to the model (commonly cited fix for Army Painter primers and one I've personally used for a few different white enamels). Whether it's due to heat, humidity, or some other unknown ambient condition, the less time the paint spends between the nozzle and the model's surface, the less that can go wrong. You'll have to move more quickly, though, as the cone of spray is far more concentrated at close range. If you aren't careful, you'll overload the model, obscuring details and causing runs and drips.