Found some more on application temp range. Again from Plasti dips website.
"Temperature is also an important factor when applying Plasti Dip. Ideally, Plasti Dip should be applied at “room temperature” temperatures, from 65-70°F. (Though I myself used aerosol Plasti Dip on a project in my unheated garage a few weeks back, and, while I’m no human thermometer, I’m pretty sure the temperature in there was lower than the ideal. The Plasti Dip went on just fine, and dried in the usual amount of time with no problems.)
And speaking of ideal application conditions, it is best to avoid direct sunlight, high humidity, and windy conditions, if possible. High humidity and higher or lower than ideal temperatures can adversely affect the finish of Plasti Dip once it dries, making it look cloudy or hazy. (This wasn’t a concern for the project I mentioned above, as I painted over the Plasti Dip after it dried.)
To get the best possible results, apply 2-3 coats of Plasti Dip to your project. Five coats is probably the maximum that you’d ever need, but for aesthetic reasons or for extreme protection you can certainly add more. Be sure to let each coat dry completely before applying the next, approximately 30-40 minutes, and allow for at least four hours of drying time before actually using your Plasti Dipped item, whatever it may be."