Yes, paint/plasti usually needs to be above 60F. I heat my spray cans in a bucket of hot tap water. This increases the pressure inside the can, and makes the bottom half of the plasti can not "spittle". If the pressure drops, warm the can back up. I also warm up my parts inside before taking them outside to spray. Then I bring my parts back in my shop to dry. It works ok, if it is cold outside.
