Why does the wiper jump on the coated windshield?

[CarmenLee]

It is probably because the wiper is too hard. Try replacing it with a softer frameless wiper. After the glass is coated, it becomes smoother, but its adhesion also increases. If the adhesion between the wiper and the glass is too strong, the wiper will jump. For example, it's like sticking a coin to an incense burner in a temple. Below is some relevant information: Waterproof function: Rainwater falling on the treated car glass will quickly form small water droplets under the effect of the protective layer. When the droplets grow large enough, they will slide down the glass due to gravity, taking away dust from the glass and effectively cleaning it. Anti-freeze function: The treated glass has a protective layer, preventing snow or fog water from freezing solidly on the glass in winter. Snow accumulated on the glass can be easily removed, saving the trouble of clearing it and reducing waiting time.