What to Do When the Rearview Mirror Gets Blurred by Rainwater?
1 Answers
When the rearview mirror gets blurred by rainwater during rainy days, the following solutions can be applied: 1. Wax the rearview mirror. When water is on a waxed surface, the internal cohesion of the water becomes greater than its adhesion, preventing the formation of water droplets. However, wax is susceptible to external temperature influences, and improper application may impair visibility. 2. Install rain guards on the rearview mirror. Rain guards are suitable for use when the rain is not too heavy. Installing rain guards can also block water on the car windows, keeping both the rearview mirror and side windows clear. 3. Apply a water repellent to the rearview mirror. Applying a water repellent can maintain clear visibility by altering the surface tension of water on the glass, preventing water from sticking to the mirror's surface. 4. Use soap or dishwashing liquid to spray the rearview mirror. Cleaning agents contain surfactants, whose hydrophobic groups, due to their physical properties, push water outward, preventing the formation of water droplets.