Once, long ago,, like 6 or so years ago, I got a flat & used a can of Fix-A-Flat & it sealed off & got me home. Tire was worn badly, so, I ordered a new one & went & had it put on, IIRC it held up till I got the new one on,,
Then, on an almost brand new rear tire, I got a flat & I guess I used 4 or 5 cans to get home,, it was a 50 mile trip, at 50 or more MPH, on the Slab It felt fine, but get slowed down & in town Id hafta blow a few bucks into the tire. Last one did pretty good, it plugged up & held Some pressure, which along with the heavy, stiff new tire was good for the last 10 or 12 miles of slow roads. I got home, pulled down the drive, parked it & it blew that plug of gooky nasty crap out & ugly junk spewed out of it for a while,,
& they werent happy with me where I took it to get a new tube in it,,