Originally Posted by
Papa Tom
I think the step you are missing is the step we ALL miss very often. In order to get the adhesive to bond, you need to let it dry for a good ten minutes or so (until it has almost lost its tackiness) before you apply the patch.
The OP missed that step because he was using glueless patches.
A few people have reported good luck with the glueless patches. But, many have have had better results with glue type patches, as noted by the responses above.
When your tire went flat the second time, did you check where the flat was? Under the patch? Somewhere else? That will tell you if the patch failed, or if your flat is caused by bad rim tape, trapped debris, something left in the tire, or poor installation technique.
I always try to locate the hole in the tube, then figure out where it would have hit the tire to direct my search.