I have never had good luck with glueless patches. Maybe they were old or something. For those of you that have had good luck with glueless. Tell me if you do anything different from this.
Find the leak
Clean it out both tire and tube
Wipe off talc with water
Dry
Sand/buff
Blow dust off
Put on the patch
Hold for a bit
Install and pump…….
Then I have to go to a glue patch as the darn glueless won’t hold.
Help
Cheers,
Dusk