Question:

Would it spray and dry ok in the winter months?

Answer:

The colder it is, the longer it takes to cure. If your shop is below 70 degrees, it would be highly recommended to use heat lamps or other source to keep the surface area heated for at least 12 hours. You would still be advised to let it cure further for a couple of days before exposing to freezing temperatures. The product does not need to dry, but curing will be slower in low temperatures.