Silver bearing epoxy, pricey and effective. Loctite has a kit for re-glueing rear view mirror button back on and copper paint to reconnect. Solder back on with 700W iron. Heat up solder on glass and stick tab against it, then put iron on tab and heat both to attach. Just did it today with small, stick type iron....couple attempts and its OK! Don't over heat or BOOM, new glass.......
Steve O.
Steve O.