I purchased some Epoxy primer as well as Contour Polyester Primer in July 2013 to use on my 1955 F100 however life happened and I was unable to use the product at that time. Now I am finally getting ready to work on my truck again and was wondering if this product would still be OK to use. It has been stored inside my basement garage since I received it. Is it OK to use or what should I look for if it has exceeded the shelf life of the product. None of the cans have been opened and while the garage gets cool in the winter I doubt it ever gets below 40-50 degrees.