
After rain, water droplets on rearview mirrors can cause blurred vision, making it difficult to see clearly. Avoid changing lanes recklessly under such conditions. Here are specific solutions: 1. Use Toothpaste or Soap: Before driving in the rain, evenly apply toothpaste or soap to the rearview mirror surface. Let it sit for a while until the soap hardens, then wipe it off with a towel. This will form a protective layer on the mirror with hydrophobic effects, preventing the formation of water droplets and fog. 2. Purchase and Use Special Water Repellent: Water repellents available on the market generally come in two types: spray and wipe-on. Evenly spray or apply the water repellent to the rearview mirror. A protective film will form on the surface, which also has excellent hydrophobic properties, effectively preventing fogging and water droplets on the rearview mirror, ensuring clear visibility. 3. Install Rain Guards on Rearview Mirrors: Rain guards installed above the rearview mirrors can block rainwater, preventing it from dripping onto the mirror surface and obstructing vision. However, rain guards alone cannot solve the problem of fogging. Installing an additional heating element can raise the mirror's temperature, effectively preventing fogging. Combining both solutions ensures both rain protection and anti-fogging.

Yesterday I encountered a situation where my rearview mirrors were completely covered in water droplets after the rain. I quickly pulled over, took out a clean microfiber cloth from the glove box, and wiped them clean. This cloth works great—it absorbs water well and leaves no streaks. When I got home, I started thinking about how to prevent this and found that applying soapy water to the rearview mirrors is particularly effective—just spread a layer of soap solution with a sponge, wait ten minutes, then polish it with a dry cloth. Now the rainwater just rolls right off. I also discovered that folding the rearview mirrors when parking helps reduce water accumulation. Oh, and I now keep a rain repellent spray in the car, applying it every two months—water droplets don’t even cling to the mirrors anymore. These little tricks have made driving much safer for me during the rainy season.

As a driver who frequently travels long distances, I place great importance on visibility safety. When water droplets form on the rearview mirror, I immediately turn on the rear window defogger function, which is usually located near the air conditioning panel. It takes about five minutes for the droplets to evaporate. Normally, I apply rain repellent films to the rearview mirrors, a process as simple as applying a screen protector to a phone, with effects lasting up to three months. Remember to clean tree sap from the mirror surface promptly after rain, as it makes the mirror more prone to fogging. In case of emergency without tools, you can use a potato slice to wipe the mirror surface—the starch layer forms a temporary hydrophobic coating. These small tips are all summarized from years of driving experience.

I've tried various anti-fog tips, and the most effective is still the dedicated rain repellent. Buy a can of spray from the supermarket, thoroughly clean the mirrors first, shake well and spray evenly from a distance of ten centimeters, wait two minutes and polish with a dry cloth. The treated mirror surface will not accumulate water even in heavy rain, but will form a curtain of water that slides off. Also, remind everyone not to buy cheap and inferior products, some of which will fail after a few uses. Now I spray it every time I wash my car, and I no longer need to constantly wipe the mirrors when driving in the rain, which is both worry-free and safe.


