When should I replace my window film
When should I replace my window film?

There are many good reasons to install window films for your home or office. They offer a range of functional benefits, such as privacy, security, and cost-efficiency.


The biggest question is: how long will the window films last? Truth be told, deterioration is bound to happen over time. However, there are ways you can ensure they will last for as long as possible.


In the following section, we’ll cover the signs and causes of window film deterioration that you should know about. Keep on reading to learn how to maximize the longevity of your window film.


Signs of window film deterioration


When window films deteriorate over time, chances are that you might see one of these signs, or several of them in any combination. When the film gets old, expect the following:



The fading of the window tint is the most apparent sign of deterioration. This can be caused by sun exposure, heat exposure, low-quality film, and poor installation, among others.


Turning purple:

The dye used in window films is a mixture of red, blue, and yellow dye. Yellow tint has a more unstable compound than red and blue ones. When exposed to UV rays, it leaves behind the red-blue combination, resulting in the purple film.


Bubbles forming:

The adhesive used to attach the film to the window is chemically broken down by the sun’s heat over time. As a result, this causes the bubbles to form between the window and the film.



Sun exposure leads to window damage that can cause the film to turn brittle over a long time. This makes it susceptible to cracking if it is hit by anything.



The exposure to the sun’s heat causes the adhesive attached to the film and window to wear off. This results in the edges of the film starting to peel away from the window.


Causes of window film deterioration


Although it’s inevitable that the window film will deteriorate over time, its deterioration can even be sped up by a handful of factors, such as:


Poor installation:

This can be caused when the installer uses low-quality adhesive or doesn’t know how to install films at all. It can also happen if you take the DIY route and do not perform the installation effectively.


Excessive sun exposure:

The sun’s UV rays can break down the chemicals in the dye used in window films. As a result, it can cause the film to fade, turn purple, or peel over time.


Constant heat:

The extreme heat can break down the dye in your window film as well as the adhesive used to attach the film.


Practical tips for window film deterioration


Know that some window films can start showing signs of deterioration in as little as three months. Professionals, however, say that window films can actually last between 10 and 25 years, only if you ensure that:


  • They are of higher quality window films.
  • They have been professionally installed.
  • They are properly looked after and maintained, you can read our article on taking care of window film by clicking the link.


In conclusion


Now that you know the signs of window film aging and what causes them, you can do your part in delaying such deterioration. Follow some of the practical tips outlined above to make a significant difference in the aesthetic value, functionality, and longevity of your window films.


If you’re looking for window film in Sydney to replace your current film, get in touch with us today! We’re happy to help.

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