The rear windshield(or rear glass) is located opposite of the front windshield, and is located in the back of the vehicle, sealing it off from the outside. Similar to the front windshield, the rear windshield is one of the types of auto glass that helps your vehicle keep it's rigid frame, as well as protecting the occupant of the vehicle. Unlike the front windshield, the glass for the back windshield is made in the same way that auto glass is made of for the side window, vent window or quarter glass panes: tempered glass. The back car window glass is strengthened by thermal or chemical treatments so that it can withstand blunt force, but will shatter into tiny, granular chunks of glass instead of shards. This is a feature of a tempered glass and is often called "safety glass" for this reason.
The rear windshield comes in all shapes and sizes, depending on what kind of vehicle you are driving. Most cars have a rear windshield that is completely bonded to the rear of the frame of the vehicle, while some trucks have sliding panes called "track sliders" or ones that open outwards on a hinge so that air may circulate in the vehicle or provide additional room for larger loads. Some vehicles have rear windshield wipers to wipe dirt and water off of the rear windshield, so the rear windshield is not obstructed . If you experience damage to your back windshield glass, get the auto glass repaired right away.