| Alan,
Superglue life can be extended it it is kept in the fridge prior to use.
loctite seems to go off, (my experience is the same as yours), the cheaper small tubes eg 3 tube blister packs available from 'Pound Shops' seem to offer the best economy but the glues do differ considerably.
The best i find for keeping qualities are a brand called "Tufloc", come in three thickness's, set of three bottles for about £6.
J. |