I have a tyre repair kit that I bought ~4 years ago. I never used it. In fact, I never used such a kit in my life.

Does the glue expire after some time, or is it good indefinitely? The tube is still sealed, but I am worried that should I need to use it, I might find that the glue has already set.

enter image description here

  • 2
    Basically it's good for 10 years or so unopened. Once you open it maybe 2 or 3 years. But note that the goo on the patches also dries out, probably in 5 years or so. – Daniel R Hicks Jun 6 '20 at 20:42
  • " In fact, I never used such a kit in my life." You can be quite sure that whatever deity and/or statistical property of our universe will cause you a puncture in the next 5 rides. Get ready :) ! On a slightly more serious note, I would worry about the levers becoming brittle and breaking in your hands. I have the same levers ... well, I have one left, I think I changed 4/5 tires at maximum. I suggest replacing them with some levers from the same brand, but the wider ones (the colorful ones). – EarlGrey Jun 6 '20 at 21:42
  • @EarlGrey I did have a few punctures (too many blackberries here), but most of the time it took until the next morning for the tire to deflate. The one time it didn't, I didn't have the repair kit :-( – Foor Jun 6 '20 at 21:59
  • 2
    I'd suggest carrying spare tube on rides, and fix the puncture in the warmth and comfort of home. No need to carry this kit on a ride. – Criggie Jun 6 '20 at 23:27
  • 2
    @Criggie and when you are without the kit, then you have a puncture in the new tube because when you quickly changed the tube you forgot about checking the tires for debris/thorns/nails ... I am a pragmatic optimist: either I bring both a spare tube and a kit, or none. – EarlGrey Jun 7 '20 at 9:07

Not indefinitely, but it is good for many years. After you open it, there could be a tendency for drying, but even that takes a very long time. Even opened and well closed glue will survive for years.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.