850i headliner

[mein]

I have a customers car, and he wants the headliner to be repaired. It saggs but no tears. He is pretty cheap, and doesn't want it done the right way. "headliner doard removed, scraped, and new clothe" but wants me to spray a foam adhesive, and the creditcard trick... will the adhesive and creditcard hold up or will it sagg again...?

[renemesis]

If he doesn't want to do it the right way tell him what some of the potential problems could be, then gladly take his money.

[Stück]

No, it won't hold up. Worse yet the fabric is so thin once the foam has decomposed that the adhesive will soak through.