Actually, thinking about it, if it doesn't tell you what the solvent is on the label, you might be able to get an idea from the smell.
I'm not sure this is a good idea for anything critical though. If it flakes or something, you may end up having to replace it all. I am right in thinking it's only purpose is to show whether a fitting has been tampered with? If it is supposed to actually hold the fastener (like Loctite etc), I certainly wouldn't try to 'revive' it if I was going to use it on anything more important than a toilet door hinge...
