You are right. Wished I had thought of that. For the moment, the sandals are functional.
When I get home, or if the glue fails, I will try that out. I really need a way to clamp the sandal while the glue sets. Don't have a way to do that at the moment. Want the edges to be bonded, which is harder with out clamps.
Really want a cobbler. They have all the right tools to repair shoes and sandals.