The link that Jerry posted has a good write-up on Connolly's. It has a notice in it that I did not know about...
do not store it in the garage where it will get too hot! I left my container in my garage and it separated into a clear yellow liquid and a white paste. Fortunately I have another jar to use and I am going to try to recombine the separated one with a whisk chucked up in my electric drill. Hopefully it will whip back together or I may end up with it spattered all over the garage.