Do You Know Those Little Dots and Black Stripes on Car Windows? They Have An Essential Function

Written by Romário Pereira de Carvalho

Published on 03/07/2025 at 15:01

Os pontos pretos em um para-brisa são chamados de frits. Normalmente, a faixa de frit começa como uma linha sólida antes de se transformar em muitos pontos pequenos individuais mais próximos da borda — Foto: Divulgação

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Dots And Black Stripes On Car Windows Have Essential Technical Functions, Like Protecting The Glue, Preventing Overheating And Improving Performance

In automobile manufacturing, every detail serves an important function. One of these elements often goes unnoticed: the small black dots and dark stripes at the edges of the car windows. But they are not there just for aesthetics.

The windows play an essential role in the vehicle’s performance and safety. They protect the interior, contribute to comfort, and also influence the aerodynamic coefficient.

This means that the better sealed and fitted they are, the lower the air resistance on the bodywork, which improves the overall performance of the car.

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To ensure that the windows are well secured, manufacturers use high-adhesion glues. However, these glues need protection against heat and other external agents.

That’s where a practical and efficient solution came into play: the application of a durable ceramic paint on the edges of the windows, forming the visible black stripes on the outside.

In addition, the small black dots or squares, positioned right after this continuous stripe, serve as a transition.

They help better cover any residue from the adhesive material and provide a more uniform look to the whole set. This technique also contributes to temperature control around the glass.

This ceramic paint has high durability and acts as a barrier to prevent the sun from melting the glue that secures the glass to the car’s structure. This increases safety and preserves the integrity of the windows, even under intense sun exposure.

In certain models, the black stripe also houses heating systems or defrosters, integrating more functions into the same element. As a result, the combination of dots and stripes becomes even more useful within the car’s design.

In the end, this discreet detail reveals how much the automotive industry relies on creative and technical solutions to unite aesthetics, functionality, and safety. All this so that the car operates well and has durability.

With information from Canal Tech.

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Do You Know Those Little Dots and Black Stripes on Car Windows? They Have An Essential Function

Dots And Black Stripes On Car Windows Have Essential Technical Functions, Like Protecting The Glue, Preventing Overheating And Improving Performance

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Do You Know Those Little Dots and Black Stripes on Car Windows? They Have An Essential Function

Dots And Black Stripes On Car Windows Have Essential Technical Functions, Like Protecting The Glue, Preventing Overheating And Improving Performance

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Workers were opening a modern road in Dover when they found, 6 meters below the asphalt, a 3,500-year-old boat made of stitched oak and plant fibers.

A giant brown band visible from space, approximately 8,850 kilometers long, connected Africa to America in the Atlantic Ocean, and satellites revealed that it is neither land nor pollution, but the largest accumulation of seaweed in the world, which broke records in 2025.

Engineers want to carve through Africa with a giant canal to bring water from the world’s second-largest river to a dying lake on the edge of the Sahara Desert that has already lost 90% of its water.

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