But now the time has come. Due to a top repair I had to remove this shiny piece of plastic and I'd like to put it back on because this protector (material and shape) is very typical for the instruments of this luthier, and the instrument is practically new (but with a broken, repairable top).
This night I made a call to Bolivia to ask what he (the creator of this charango) used to glue the protector on and he told me "easy, just use shoemaker's glue!". I have shoemaker's glue, but it smells quite different than what I could smell while de-gluing the protector (I applied moderate heat, about 50°C).
The protector is about 0.2 mm thin. He told me that CA would melt it. I don't want to use Epoxy because I'm afraid that a future removal would be impossible or very difficult.
Any ideas what kind of glue I could or should use without running the risk of ruining the protector?
(I don't want to have sent me a genuine looking replacement from Bolivia...)
Here some photos of what I'm talking about:

