I store my wizard plug in my garage since all my pro shop equipment is in there, and living in Alaska, the temperature is all over the friggin place, and the only problem, and it's not really a problem, is the hardener crystalizes at the very tip of the pump. I take a little screwdriver and break it out, usually in one solid piece and everything flows fine after that. And I don't use my plug very often. I really wouldn't be too concerned about it.