Originally Posted by Dudlet
Wow, you can reheat the glue and it will still work afterwards?
Yes, it's a regular practice if you coat the material and get called away for longer than normal (like days.) Some also add a wipe with solvent, but just heat works as well.
Then, yes, I will definitely try this option first as I know I got plenty of glue in where the bubbles formed.
It's simpler, and if it doesn't work, you're out a couple of hours but not much labor.
As cgoing mentioned, too much glue is as bad as not enough. For PVC, the glue melts the fabric surface and welds to it. You need just enough surface adhesive to allow the two layers (one on each repair piece) to stick to each other; a barely perceptible layer should do fine.