Keep Miracle Glue in the
refrigerator to get a decent shelf life. Kept
refrigerated Miracle Glue typically lasts for 2 years. Not
refrigerated it's hard to predict. Heat and light affect the
glue. Un-opened in the fridge it appears to last much much
longer - perhaps indefinitely.
What's been done to make Miracle Glue different than Super Glue or Krazy Glue is that the solvents have been distilled out. So, as Miracle Glue is pure it is much stronger and there are no solvents to make it discolor and go brittle. It dries clear and flexible. But the real benefit is that you get to use it all. It is stronger than Superglue and has a much longer shelf life! Store it in the fridge and
you'll get a very good shelf life out of it. Most customers keep it for 3 years. Use it at room temperature for best results.