Expiration date for strings


New User
Is there an expiration date for strings ?
1) poly
2) multi
3) syn gut
4) nat gut

I have several reels of different strings which I only use in hybrid. It will be around for a long time. Are they good after 5 years, 7 years, ... ?

Will they lose elasticity or will there be a change in materials after several years ?

jim e

Steve is correct. As long as string is stored property.
I have had same experience as Steve mentioned.


I guess there is a reason string sets have no expiry date on the packaging. Other than direct sunlight, and extreme heat, I would also avoid very low humidity, such as in an air conditioned storage. Gut doesn’t like high humidity either, but no problem for nylon and poly.