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Present in Most Cars Manufactured in Brazil and Around the World, the Black Dots and Dark Stripes on the Windshield Arouse Curiosity Among Drivers. In Addition to Composing the Design, These Markings Have Technical Functions Related to Thermal, Structural Protection, and Even Aesthetics.
The black dots, also known as frit, form a visual transition between the transparent part of the windshield and the printed black band. This dark band, in turn, serves to protect the adhesive used in securing the glass from the effects of ultraviolet rays, ensuring greater durability and safety in the attachment of the component.
In addition to protection from the sun, the frit gradually distributes heat across the surface of the glass. This prevents a sharp temperature difference between the dark and light areas, which could cause cracks, distortions, or wear of the material over time.
The quantity, shape, and arrangement of these dots can vary according to the model and manufacturer of the vehicle. In some cases, automakers add custom symbols to the glass, such as hidden designs — known as “easter eggs” — that add a unique touch to the car’s aesthetics.
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According to information from the CNN Brasil portal, these details have practical functions that go unnoticed by most drivers. Jeep, for example, often includes designs of the Willys, a historic model of the brand, at the corners of the windshield — a detail that, when absent, can even indicate the replacement of the original glass.
