Slime is not quite the same thing. It’s got rubber crumbs to plug holes. But tubeless tire sealant is made with liquid latex that dries out when it leaks to make a seal. More like Fix-A-Flat. It lasts a few months in a tubeless tire but in a tube it can go a year. I just pumped up my tandem again after a long storage. The last thing I did before I put it away was put sealant in it to patch a leak, and pump it up. When I pumped it up lately nearly a year later it still had about 10 psi left and the sealant was still liquid.

i disagree with locolobo, they are freaking everywhere in Phoenix. Armor up, however you choose to, and spend your attention on something else