How to make scratched car glass clear again?
2 Answers
Automotive glass scratches can be repaired using a specialized windshield repair agent. Here are the relevant details about repairing car windshields: 1. Precautions: Only the front windshield can be repaired because it is made of laminated glass, which generally does not suffer from large-scale cracking. Repairs are only possible under these conditions. 2. Types of glass damage: One type is bullseye or star-shaped cracks. Bullseye damage is circular, resembling a dent; star-shaped cracks radiate outward from the impact point, resembling a spider web. Generally, if the diameter of bullseye damage exceeds 3cm, the damage is too severe to repair. Star-shaped cracks with diameters exceeding 30cm are very difficult to repair, and even if repaired, there is no guarantee of quality or appearance.
Here's how I do it: First, identify the cause of the blurred car glass. The exterior might have oil film, scratches, or dust buildup, while the interior could be foggy or have fingerprints. Start by cleaning—use glass cleaner with newspaper for wiping. For stubborn oil film, spray on a specialized cleaner, wait a few minutes, then wipe it off. For scratches, apply toothpaste with an old toothbrush and gently scrub, then polish with a soft cloth—it works better than you'd think. Finally, apply a rain repellent to prevent water droplets from lingering. I usually maintain it once a month, and the driving visibility improves significantly—safety first. Remember, avoid using hard objects to scrape, as small scratches can worsen and become a bigger issue.
