In this first part of a 3 part series, Justin preps the windows and then installs the key panel with Rainer. This video shows how to clean glass properly for full coverage installs as well as how to align and cut out a key panel. This is a must watch for anyone who does wet installs for offices and stores. Film used: ORAJET 3952F ladder, squeegee, buffer, knife, blade, safe box, marker, sharpie index: commercial - window tags: orafol, orajet, 3952f, window, office, desert, glass, key panel