Can Windshield Glass Be Polished?

[DeKhloe]

Windshield glass can be polished. When the glass surface is worn by small sand particles, or the wiper blades cause severe scratches due to sand friction, making the glass surface rough and reducing transparency, regular cleaning won't solve the problem. In such cases, polishing and grinding are necessary. Below are the reasons for spontaneous windshield cracking: 1. Heat and cooling effects: Spontaneous windshield cracks usually occur at the edges of the glass. The main reason is that during the processing of laminated glass, heating and cooling create internal tensile stress and surface compressive stress. These forces remain stable when balanced but can lead to spontaneous cracking if unbalanced. 2. Sudden temperature changes: If car glass is exposed to intense sunlight and then comes into contact with cold water, the drastic temperature difference may cause the glass to crack. If spontaneous cracking occurs on the windshield, pull over immediately and avoid further driving. While minor cracks can sometimes be repaired, it's safer to replace the glass entirely. 3. Improper installation: Windshield cracks can also result from improper installation, the use of substandard adhesives, or low-quality heat-resistant films that absorb rather than block heat, creating excessive temperature differences when the car's air conditioning is on.