
Windshield polishing has no negative impact. After polishing the car's front windshield, it smooths out some of the fine pores on the glass, leaving no marks on the surface while improving the glass's clarity, providing the driver with a clear view. Windshield polishing can protect the front windshield and extend its service life. The specific steps for polishing are: 1. Clean the glass and the surface of the glass polishing sandpaper, ensuring there are no dust, sand, or other particles attached; 2. Before polishing, use a marker to outline the area to be polished on the back of the glass to avoid shifting and causing an overly large polishing area; 3. Use P120, P240, P400, and P600 grit glass sandpaper to remove scratches from the glass; 4. Wipe the glass clean to observe the sanded area, apply polishing solution, and use a polishing wheel or pad to polish, being careful not to move too quickly.

Having driven for over a decade myself, I can say that windshield polishing really requires careful consideration. Last year, my car's glass had some minor scratches causing annoying glare while driving, so I took it to a repair shop for polishing. After polishing, it did become much clearer and rainwater rolled off more easily, but the technician warned me not to do it too frequently as it could thin the glass. If you DIY it, improper pressure control may leave wavy marks, making night driving even more troublesome. Also, if the glass has special coatings like a water-repellent film, polishing might remove them permanently. It's advisable to test a small area with polish first. Don't cut corners by going to a roadside shop – find a proper service center. Regular cleaning to reduce dust buildup can also help prolong the polishing effect.

As a novice driver who loves tinkering with cars, I've tried windshield polishing once and found both pros and cons quite noticeable. The most immediate benefit is improved visibility - after removing those fine scratches, driving in rainy nights feels less dizzying. But don't get carried away; polishing too aggressively can create uneven glass surfaces that refract light strangely, which is dangerous at highway speeds. Cost-wise, it's economical - just buy a bottle of polishing compound for a few dozen yuan and DIY, like spending an hour on weekends to buff out scratches, which is much cheaper than replacing the glass. However, choosing the right tools is crucial - only slow-speed polishers can achieve even grinding. In the long run, if the glass is severely aged, polishing might actually accelerate cracking, so it's important to assess the overall condition before deciding.

I've studied windshield polishing, and the effects mainly fall into two aspects. On the positive side, it removes fine surface scratches, improving nighttime visibility and reducing hazards. However, from a negative perspective, excessive polishing can weaken the glass strength, leading to decreased impact resistance. Controlling the pressure during operation is crucial—avoid using strong acids or coarse abrasives, as the damage would be irreversible. Cost-wise, it's an economical option, especially effective for new scratches.

Windshield polishing is a double-edged sword from a maintenance perspective. The benefits include enhanced aesthetics and improved rainwater drainage, especially for removing oxidized layers on older car glass. However, significant risks exist: polished glass becomes thinner and more prone to cracking, or micro-pits may form on the surface, trapping water and causing stains. Don't blindly trust DIY tutorials for daily maintenance - professional polishing machines are essential for depth control. Choose based on scratch severity: effective for shallow scratches, but skip deep ones to avoid wasting effort. Park in shaded areas to minimize sun exposure and prevent accelerated glass aging. Post-polishing care is crucial - regular cleaning maintains results by preventing dirt buildup, helping the effects last longer.


