Are Bubbles in Car Window Tinting Film Harmful to Human Health?

[DeNolan]

Bubbled car window tinting film can release a certain amount of methanol, which may pose health hazards, especially for car owners with infants at home. If there are few and small bubbles on the rear window, you can try to handle them yourself by puncturing them with a needle and smoothing them out with a hard card or similar item. However, if there are numerous or large bubbles, it's advisable to seek professional assistance at a tinting shop, and re-tinting may be necessary. Below are additional details: 1. Causes of bubbling: Generally, the rear car window has defogger wires for deicing and defogging. When the defogger is activated, the wires heat up, causing the adhesive on the film to harden and lose its stickiness, resulting in bubbles. Frequent expansion and contraction due to temperature changes can also lead to deformation and bubbling. Additionally, bubbling on the rear window film may be related to the quality of the film itself or the installation process. 2. Post-installation precautions: (1) Avoid rolling down the windows for three days after the film is installed. (2) Do not wash the car for three days. (3) If the car has a sunroof, avoid opening it while driving, especially at high speeds, for three days. (4) If bubbles appear at the edges of the film, they should be repaired at the installation site within 24 hours. After this period, the adhesive around the bubbles will have dried, making the film immovable and likely to crease during repair. (5) For one month after installation, avoid attaching strong adhesive labels directly onto the film to prevent partial detachment from the glass.