How fix edge of patch lifting very slightly
A (the only) repair PVC patch on my Bombard Explorer 500 RIB (by previous owner) is lifting very slightly at one point as pictured.
Not causing any problems at present but I'm keen to stop it slowly getting worse. I see no need to remove the patch entirely.
Gut instinct would be to just put some suitable glue under it, but welcome any better suggestions from you folks.
Best wishes and thanks