How to Deal with Bubbles in Rear Window Car Film?
2 Answers
Here are the solutions for bubbles in the rear window car film: 1. Bubbles appearing immediately after installation: If bubbles appear shortly after applying the rear windshield film, and the bubbles contain white spots, it is usually due to improper handling of moisture between the film and the glass during installation. The moisture will evaporate and form small white bubbles the next day or over time, but these bubbles will not be large or numerous. This situation does not affect normal driving, and the bubbles will disappear once the moisture evaporates. 2. Bubbles appearing long after installation: If bubbles appear several years after installation and gradually increase in number and size, it might be due to the use of low-quality film. Over time and exposure to UV rays, inferior films can release toxic gases like formaldehyde, causing bubbles. In such cases, the car film should be replaced immediately, as continued use can pose health risks.
The film on my car's rear window has bubbled several times, and I've fixed it myself each time. A simple method is to use a heat gun about 10 centimeters away from the film to slowly heat the bubbled area. Once the film softens, use a fine needle to gently poke a small hole to release the air, then use a credit card or plastic card to slowly smooth and press it down. If the bubble is large, you'll need to be patient and repeat the process several times. But be careful not to overheat and damage the film or the window, and don't poke the film too deeply. If the film is of poor quality or severely aged, it may bubble again after repair, so it's best to replace it with a new one. I once chose a cheap film to save money, but it started having issues within a year. Now I've learned my lesson and opt for professional films from reputable brands, ensuring no dust or moisture during installation. When washing the car, avoid spraying high-pressure water directly on the rear window to reduce the risk of bubbles. DIY may save money, but if you're not familiar with the process, it's safer to leave it to professionals.
