Windshields feature black dots, known as frits, for a variety of crucial reasons. Firstly, they assist in distributing temperature evenly across the windshield, making it easier to remove mist or ice quickly. This even temperature distribution also prevents cracks from forming due to sudden temperature changes. Secondly, the frits reduce optical distortion, which occurs when a solid black border heats up faster than the windshield glass, causing straight lines to appear curved.
In addition to these benefits, frits play a vital role in maintaining the integrity of the windshield in hot weather. They help preserve the urethane sealant used to bond the glass to the frame, preventing the sun’s ultraviolet rays from melting the adhesive. This ensures that the windows remain firmly in place.
Furthermore, the frits add roughness to the glass surface, enhancing the adhesion between the glass and the car frame.
While some may find the black dots aesthetically pleasing, their primary purpose is to enhance vehicle safety and performance. They contribute to clear visibility, prevent damage, and ensure the secure placement of the windshield.
