How to Repair Welding Spots on Car Windshields?

[DeJanelle]

Methods for repairing welding spots on car windshields are as follows: 1. Ordinary Glass: For glass burns, sandpaper can be used for grinding and polishing, but due to the depth of the damage, there will be noticeable indentations after treatment. Therefore, whether to proceed with the repair depends on the size and location of the damage. Typically, car owners can claim under glass insurance. 2. Tempered Glass: If it's tempered glass, it cannot be repaired. If it's not tempered, a glass polishing machine can be used for gradual grinding. Car glass is heated in a furnace to near the softening temperature and then quickly transferred to fans with varying cooling intensities for uneven cooling. This creates different stress levels between the main viewing area and the peripheral areas of the glass. The peripheral areas, positioned under the strong airflow of the cooling fans, undergo full tempering, resulting in better fragment characteristics in these areas.