I was under the impression that it wouldn't really degrade at all if its in a solution. I've heard of people having it in naptha for 1+ years. But all you can do is finish it, and tell us your results. Lol
"I am cursed by the blossoming knowledge of my feminine ideal and she looks suspiciously like you."
"Everybody is a genius. But if you judge a fish by its ability to climb a tree, it will live its whole life believing that it is stupid." -AE