Should I Replace the Bubbled Rear Window Film?
3 Answers
Rear window film with bubbles needs to be replaced. Below are the specific reasons for bubbles in rear window film: 1. Presence of moisture: If bubbles appear shortly after the film is applied, they are usually white spots caused by improper handling of moisture between the film and the glass during installation. 2. Use of low-quality film: If bubbles appear years after installation and gradually increase in number and size, this is due to the use of inferior film. Low-quality films, when exposed to long-term UV radiation, release toxic gases like formaldehyde, leading to bubble formation. Poor-quality films, such as those with aging adhesive layers, rough film structures, or easy delamination, will develop bubbles and ripples under UV exposure.
The rear window film has bubbles, and I personally believe it must be replaced. Bubbles are not only unsightly but also pose hidden safety hazards. Large bubbles can obstruct rearview visibility, especially when reversing or driving in the rain, making it difficult to see anything clearly and increasing the risk of accidents. Worse yet, bubbles may indicate that the film has aged and failed, losing its UV protection function, which can lead to direct sunlight damaging the interior. Moreover, small bubbles can spread, causing the entire film to detach, and repairing the glass would be even more expensive. I recommend going to a professional shop immediately for an inspection and replacing it with a high-quality film—don’t skimp on this small expense. Safety comes first, and unclear visibility while driving could result in an accident, leading to losses far exceeding the cost of the film.
As a cost-conscious car owner, I'm debating whether to replace the tint film or not—it depends on the size of the bubbles. Small bubbles aren't very noticeable, so it's fine to hold off for now. But larger bubbles cause multiple issues: obstructing visibility, affecting reversing, and providing poor heat insulation in summer, which can triple your AC electricity bills. Replacing the film isn't costly, with budget options available for a few hundred yuan. DIY replacement is possible, but be cautious of air bubbles. If left unreplaced, expanding bubbles may damage the glass, leading to repairs costing thousands—a major loss. Long-term, as your car ages, regularly inspect the film's condition—early replacement saves hassle. On a tight budget, prioritize replacing the rear window film to avoid penny-wise, pound-foolish decisions.
