What Causes White Marks When Wipers Scrape the Windshield?

[DelaneyRose]

The reasons for white marks appearing when wipers scrape the windshield are as follows: 1. Precautions: Avoid unnecessarily scraping the windshield. When it's not very dirty, try to clean it with a towel. Use windshield washer fluid produced by reputable manufacturers in the spray bottle and avoid using tap water as much as possible. Small stones stuck in the wiper or rubber deterioration may cause the wiper to scrape the glass directly. 2. Damaged rubber strip: The primary cause is likely a damaged rubber strip. External dust and sand particles can damage the wiper rubber strip, leading to water streaks during wiping. The lifespan of a wiper is approximately 6 months to 1 year, but with proper maintenance, it can last longer. 3. Poor design: The wiper itself may be poorly designed. One solution is to extend the wiper arm behind the wiper shaft to reduce the scraping angle. Loose connections in the wiper linkage support section should be inspected. Wear at the hinge points of the wiper linkage, deformation of the linkage, or failure may require replacement.