What to do when the rearview mirror rainproof film ages?

[DelGrant]

For adhesives on plastic products, you can use the hot setting of a hair dryer to heat the adhesive, and then gently peel it off. For residual adhesive marks on some surfaces, you can also use an eraser to rub it once, and then remove the fluff left by the eraser.

[CameronLee]

Aging of rearview mirror rain guards is quite common, primarily due to prolonged exposure to UV rays, rain, and dust, which causes the film to crack or become cloudy. The solution I found is to first attempt cleaning: use automotive-specific glass cleaner and a microfiber cloth to wipe the film surface, as sometimes dirt masks signs of aging. If there's no improvement, simply replace the film. You can buy a roll online for just over ten yuan. When removing the old film, use a scraper to slowly remove any residual adhesive, clean the area, then wipe it dry with alcohol before applying the new film, making sure to align it properly and squeeze out any air bubbles. Parking in a garage regularly to avoid direct sunlight can delay aging. Safety comes first—drive slower in poor visibility during rain or temporarily use rain repellent spray as an emergency measure.

[MacColton]

The anti-rain film on my car's rearview mirror has aged several times, making visibility blurry during rain, which was quite dangerous. I handled it myself: first, I checked if the film was cracked or bubbling. If it was minor, I tried cleaning it with a mild detergent. If that didn't work, I bought a new film from an auto parts store—installation is super simple: clean the mirror, spray some water, apply the film, and smooth out the bubbles. Anti-rain films don't last long, usually needing replacement every 1-2 years, but higher-quality ones are more durable. Now, I use an anti-rain film plus a protective coating for better reliability. Parking in the shade to avoid prolonged sun exposure can extend the film's lifespan—don’t wait until it’s completely damaged to take action.

[Maria]

Rainproof film aging affects driving safety, with rain blurring vision on mirrors, especially at night. Take immediate action upon discovering aging: check if the film is cracked or peeling, use gentle cleaning methods for minor issues, or replace it entirely if severe. It's recommended to visit a professional shop or purchase a new one online for replacement—don't wait until an accident occurs. Safety comes first; drive less or slower in rainy conditions.