What is the shelf life of cyanoacrylate (super glue)?

The average shelf life of cyanoacrylate glue (commonly known as super glue) can vary, but typically falls within the following ranges:

• Unopened cyanoacrylate glue: 12-24 months when stored properly.
• Opened cyanoacrylate glue: 2-6 months. Once exposed to air, the glue will begin to cure and thicken, reducing its effectiveness.

Factors that can affect the shelf life of cyanoacrylate glue include:

• Storage conditions - Cyanoacrylate glue should be stored in a cool, dry place away from direct sunlight and heat. Exposure to moisture will cause the glue to cure prematurely.
• Packaging - Glue in smaller, airless containers (like squeeze tubes) will generally last longer than glue in larger bottles.
• Usage frequency - Glue that is used regularly and has the cap kept on tightly between uses will last longer than glue that is opened and exposed to air more frequently.

It's important to check the expiration date on the packaging and examine the consistency of the glue before use. If it appears thickened or has changed color, it's best to discard and replace the cyanoacrylate glue for optimal performance.