YouTube.com – In this video, 3M is going to demonstrate how to professionally apply window tint to a curved back glass. This is a video I took at SEMA 2011 demonstrating how to window tint professionally. Window tint has been around for a long time. However, tinting curved glass, such as a back window has always been a challenge. Now you will learn a method that makes this a very simple process. Knowing a few of the tricks of the trade can make the job much easier. Sit back and learn how the professionals at 3M do this.