Continuing on with our auto glass glossary series, here are three more auto glass-related terms to help you to be knowledgable and confident next time you visit a mechanic.

Frit: A black enamel band around the outer edge of the windshield. The enamel is baked into the windshield, acting as a bonding place between the windshield’s glass and the adhesive that will keep the windshield in place. The frit also blocks the sun’s UV rays from damaging and weakening the adhesive. From a cosmetic point-of-view, the frit also nicely conceals the adhesive and makes a nice boarder around the windshield. You may notice small dots going in toward the center of the windshield, this is to provide a gradient effect that slowly meets up with the solid black band. The dots are also mostly for aesthetics, but also provide a small amount of sunshade and heat dissipation. Some cars even have frit dots between the visors at the top of the windshield. The dots there act like a third visor for those days when the sun is directly in your eyes.

Glass color: The windshield on your vehicle may appear clear, but it’s most likely actually lightly tinted blue, green, or brown (bronze). To find out what color you vehicle’s windshield is, simply put something white behind it, such as a piece of copy paper or cloth.

Heads Up Display (HUD): Some vehicles display speed, miles traveled, and other dashboard measurements directly onto the windshield for the driver to see. That projection is called a heads up display. A heads up display allows the driver to check the vehicle’s stats without taking his or her eyes off of the road. Directions and maps can also be projected as a heads up display.