To the makers of CA.
Do you think, maybe, perhaps, you could date the bottles of glue as you bottle them?
CA does not keep forever. I'm not sure what the actual shelf life is, but it does indeed have a shelf life.
2 identical bottles, bought from different stores. The one on the right was opened 2 days ago. Thye one on the left just this morning.
The one on the right provided CA that wouldn't cure without accelerator. The one on the left performed exactly as required. Rather annoying when trying to mount tanks onto underframes.
It's also annoying to be tossing a virtually full bottle of glue.
Is it so much to ask?