So my Michael’s was out of the duff red so I purchased the wilton red spray instead and the flowers came out gorgeous. I sprayed the lightly but thoroughly to prevent dripping and let them air dry. The came out uniform in color and covered up very well. The can worked great, I used about 1.5 cans to cover 25 roses. I recommend the wilton spray to anyone who doesn’t have an airbrush readily available. thanks to all for your advice.