Despite seeing them almost every day, most drivers don't know what the black dots on the car's windscreen really mean. It serves a crucial function, contrary to popular belief.
Don't worry; the motoring experts at Auto Glaze have revealed the actual purpose of the black dots on your car.
According to experts, the black dots that you see on the windscreen are not there for decoration, as some might think. They serve an important purpose.
These black spots, called 'frits,' are usually located on the outer edges of the front windscreen, often appearing next to the black enamel strip around the screen
Windscreen experts at Autoglaze told the Express that black dots on car windscreens "actually help distribute temperature evenly to lessen optical distortion or lensing."
They explained: "This happens when the frit band (the solid black one) heats up much faster than the windscreen's glass, creating an optical distortion that makes either straight lines look curved or bowed inwards toward the centre."
According to experts, the black dots on car windscreens play a crucial role in assisting the driver in maintaining visibility through the windscreen. They achieve this by 'dissipating the heat and spreading it out evenly.
Additionally, these dots serve the purpose of "preserving the urethane sealant used to bond the glass to the frame," ensuring the secure and durable attachment of the windscreen to the vehicle.
The expert Autograze continued: "They serve as a contact point between the glass and car frame. They create scratches on the surface, making them rougher so the adhesive can stick better to the glass."
"Frits are also there for aesthetic purposes. If you look closely, the contrast between the dark band and the transparent glass can look too obvious even when viewed from afar."
The frit serves an aesthetic purpose as well, creating a visual barrier with the black dots on the car windscreen that helps conceal the adhesive along the windshield frame. This design contributes to a more polished appearance.
