My E-Tex resin is turning white and crystalizing in the bottle. It looks like it's mixed with sugar. I am talking about un-used resin in a sealed bottle kept indoors and less than a year old. The hardener seems fine. Is this resin now junk, or can it be warmed or stirred somehow? The only thing I can think of is that there must be air getting into the bottle somehow by a pin hole or crack in the cap??? Has anyone experienced this problem?