Originally Posted by
Al Criner
Park swears their glueless patches are a good fix, but I have never used them.
The first generation Park glueless patches were less elastic than the tube rubber and the "differential expansion" as the tire flexed under load loosened the bond pretty quickly. That, and poor instalation technique (not cleaning or roughing up the area around the puncture), led to early failure. I had one last two miles before the tire went flat again and the leak was at the patch.
Park claims they have solved the problems and the newer glueless patches are reliable. I've read reports from riders who swear by (not at) them and claim they last the life of the tube if used properly. I don't know if that's true since I've never tried them again.