The same place that has the blanks I mentioned has a bunch of old Flex-Coat high build where there has been a bit of leakage from one bottle of the other that has crystallized. The leakage has crystallized, not the contents of the bottle. We are talking very minor leakage, here. You can't really see a difference in the levels in the bottles. Seepage might be a better term. In some of the bottles, things are a little cloudy on what looks like the inside surface of the bottle itself.

Does this stuff go bad? I may be able to get a dozen of the 4oz sets (2 2oz bottles) for really cheap. I would be happy to pass the good fortune along if the stuff is usable.

Does anyone know?