Is Vehicle Rain Repellent Effective?

[TessaFitz]

Vehicle rain repellent is effective. After spraying the repellent on the glass, rainwater will quickly flow off without forming a water film, which can improve driving safety during heavy rain. The principle of rain repellent is simple: after spraying it on the glass, a hydrophobic film forms on the surface, causing water to flow off quickly. Rain repellent contains silicone and fluorine-based organic compounds, which repel water, reducing the contact area between water droplets and the glass, making the droplets easier to be blown away by the wind. Rain repellent can also be applied to the exterior rearview mirrors, ensuring clear visibility even during heavy rain.