The Auto Glass Now® Glossary was written to help you understand common terms used in the automotive glass industry. If you encounter a term you are unfamiliar with, please find it here for a brief explanation.

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Adhesion - The bonding of two surfaces
Adhesive - The substance used to bond two surfaces together, such as auto glass to your vehicle
Auto Glass Repair - The process in which a resin is filled into the crack of a windshield
Auto Glass Replacement - The process in which the entirety of a broken or cracked glass is completely swapped out for a new one
Bond - The joining together of two surfaces by use of an adhesive
Back Glass - Used to refer to the rear window of a vehicle; click here for diagram
Chip - A small cut or break to the windshield's surface; does not penetrate all the way through the glass
Coated Glass - Automotive glass with a chemical film that can provide privacy, solar or mirror effects
Cohesion - The strength of a sealant or adhesive to hold itself together
Composite - When a window component is made up of two or more materials
Crack - A split or break in your windshield or auto glass
Cure - The amount of time it takes for the adhesive in your windshield to dry and harden
Damage - The break or crack in your auto glass
Ding - Refers to the damage caused to your auto glass caused by a rock
Fastener - An item that attaches two objects together
Flat Glass - Non-curved glass, generally not used in the automotive industry
Floating Crack - A break in the auto glass that does not extend to an edge
Gasket - A rubber seal that holds auto glass to a vehicle
Glass Color - The color of the tint on your auto glass
Heads-Up Display - Some cars are equipped with a feature that projects the dashboard information up on the auto glass
Impact - A break caused when something such as a rock hits your windshield
Keyless Entry - A system which uses a key fob to unlock the vehicle; sometimes the antenna is mounted on the rear windshield of a car
Laminated Glass - The type of glass that is used in making a windshield; created to hold together when cracked instead of shattering as other glass would
Lifetime Warranty - Auto Glass Now offers a Lifetime Warranty that lasts for the duration of your car. This covers against leakage, material defects and workmanship; click here for more information.
Light Sensor - A sensor on the windshield of your car that turns on the headlights when it gets dark
Low Price Guarantee - Auto Glass Now's promise to give you the lowest prices in the industry on your auto glass or windshield replacements; click here for more
Molding - An outer weather resistant strip used to secure the glass to your vehicle
Neoprene - Synthetic rubber; sometimes used to make moldings
No-Deductible State - Some states such as Kentucky, Florida, Arizona, Massachusetts, New York and South Carolina offer no-deductible windshield replacements, meaning your windshield or auto glass could be free to you
OEE (Original Equipment Equivalent) - Auto glass that is made to the same safety standards, but by a different manufacturer
OEM (Original Equipment Manufacturer) - Auto glass that was made by the same manufacturer that made the original part
Oxidation - The breaking down of rubber items caused by exposure to oxygen
Partition Glass - A divider between the front and back seat areas in a vehicle, such as what is seen in limousines and cabs
Pinchweld - The part of a vehicle's frame that the auto glass adheres to
Power Switch - Used in power windows to make them go up and down
Preformed Sealant - A factory shaped sealant
Primer - A chemical added to improve adhesion and clean auto glass damage
Quarter Glass - The rear or backside windows in a vehicle; click here for diagram
Rain Sensor - A sensor that detects rain and automatically turns on your windshield wipers
Rear Windshield - Same as back glass; click here for diagram
Reflective Glass - Glass that reflects visible light and solar radiation using a special coating
Regulator - A device that rolls down the vehicle's windows
Resin - A special hardener that is used to repair a chipped windshield
Sealant - Material used to seal openings to make them airtight
Shaded Glass - This glass is darker in color which improves driver visibility in glare; typically found at the top of the windshield
Shard - A sharp fragment of glass
Side Glass - This is also referred to as door glass and is found on the driver and passenger doors; click here for diagram
Silicone - A chemical sealant with various purposes
Sill - The bottom frame of your windshield
Solar Glass - Glass that reflects harmful sun rays
Stress Crack - The cracking of auto glass caused by sheer forces
Tempered Glass - Strong glass that if shattered, breaks into small granular pieces
Tinted Glass - Glass with an amount of color that helps reduce glare
Urethane - An adhesive that bonds the windshield to your vehicle
Vehicle Make - The brand of your vehicle
Vehicle Model - The type of vehicle you have
Vent Glass - Usually triangular in shape, can be found on the side either in the front or back; click here for diagram
VIN (Vehicle Identification Number) - A unique, 17-digit number assigned to your vehicle
Windshield - The front glass found on a vehicle; click here for diagram
Windshield Repair - Placing a special resin into a crack to fill it and make it structurally strong again
Windshield Replacement - The act of swapping out a defective or cracked windshield for a new one
Zero Deductible State - See No-Deductible State