Auto Tint City is Metro Detroit's #1 tint destination. Refer to the chart below for the various options on the benefits of the different grades available. Call today if you have any questions. Your ATC installed tinting is covered against all defects-peeling, bubbling, fading, cracking, discoloration for the length of the warranty. If any of your ATC installed tinted windows has any of these defects, ATC will retint the window at no charge. Scratching: Your ATC installed film is HARDCOAT scratch resistant, and will wear like the glass itself.