Glueless patches haven't worked for me. What a scam.

John, I brush the glue on, spread it around, wait for it to dry, and apply the patch. In other words, I use it just as I use expensive glue. And they definitely hold.

I believe the primary purpose of the glue is to hold the patch in place, not form an airtight seal. The rubber makes the seal. Air pressure keeps the patch from moving. The patches I place with Elmers look every bit as good as the others. Every bit.