RED ALERT: Mirror and glass are dangerous and even life-threatening when installed incorrectly. Artistry in Glass cannot be liable for actions taken based on advice given on this site. Always consult a licensed professional when hanging large mirrors. The traditional way to hang large wall mirrors...
1. Prep correctly and take the time to sand. No need to sand it to the bare wood with an electric sander. A 5 – 10 minute going over with medium grit sandpaper on a sanding block will do the trick. It can never hurt and will only help with adhesion. Sanding briefly over the surf...