I've always used the Park peel and stick patches and they are permanent. No idea about other brands.
They're good, but the GP-2 patch isn't permanent.
Originally Posted by
CB HI
I think the pre-glue patches probably last at under 60 pounds but not at the tire pressures of 100-110 that I run.
I use them for roadside fixes on tires running up to 115psi and they hold for a couple (maybe 3 or 4 at the most) months.
The issue develops over the long run. The glue isn't a permanent cement and it oxidizes and gets dry around the puncture. Eventually, a leak develops from the center of the patch out to the edge. The patch itself will also start to yellow and crack over the course of a few months hanging in the shop waiting to be used. They are excellent for easy and fast road fixes, but you're better off swapping in a spare tube and using a traditional patch when you get home if you want a permanent fix.