1 to 3 yrs depending on conditions and UV exposure. GlueTread addresses a "No questions asked" replacement policy on the glue in one of their blog posts (dated: 7 APR 25).
HERES THE LINK
I'm still on the fence. Great solution if you're out on the trail and low on options. However, I think accessibility to products like this will give a bunch of dummies access to the road and putting themselves and others in danger.
Also, GLUETREAD still promotes these kits as a replacement for carrying a spare. That was the pitch I got from their rep at their booth at EJS this year.
I'm picturing a future GLUETREAD meme with a Jeep on its lid after plowing into oncoming traffic. And the driver, in handcuffs, telling officers he was just trying to get home.