I just checked and I’ve had this for a little over 2 yrs so I’m assuming it’s bad. The black separated to the bottom, is this just a pigment I can mix back in? If it hardens is it still okay to use?
Generally we say the shelf life for the EPX is 1 year. If it has been kept at room temperature and the bottles sealed when not being used, it could possibly still be usable. The black that separated is the color pigment. You may be able to mix it back together and use it. I would do a test mix and evaluate. I have used epoxy that has been around more than year and it was fine. However, I would definitely do a test and if there is any question, I would toss it and get some new.