I've had pretty good luck with "Skabs". This is a glue less tire repair kit made by the same people that manufacture "Slime". I've only had one fail on me, and that was on an inner tube that got it's second flat one day I was grocery shopping.

I had a special can of "Fix a Flat" for bicycles, and used it. Well it did it's job on the new puncture, but in less than half an hour, the Fix a Flat weakened the glue less patch from the previous repair, and the tire went flat again.

Yes like another poster observed, the chemicals in Slime, or similar, will cause the repair using the glue less patch to fail. That said, the traditional tire repair kit with rubber glue will be more durable.

Oh, and I almost forgot, there's a Skabs patch on the front inner tube of my Qile Duo folder right now, and it's still holding rather well after more than a week.

Edward