Why does Window Tint Bubble and Turn Purple

Cleaning window tint

Having your vehicle tinted can oftentimes be frustrating when unsightly bubbles pop up on the surface. Not only does bubbles make your vehicle look distasteful, it is also a sign of poor quality auto window tinting.

You then wonder, how can I remove those bubbles on my vehicle? While there is a straightforward method that you can do, it is always better to prevent the bubbles from developing in the first place which can help you save more money. The importance of prevention and the benefits it can bring is your top priority. 

The Truth About Bubbling

Bubbles appear right after auto window tinting regardless of the quality of installation. One thing to note however is there are two types of bubbles, one is normal and the other is harmful. So if you noticed bubbles on your windows right after window tinting, do not worry and have it inspected. If it is a normal one, you are not obliged to have it removed because it will eventually disappear once the film has cured. This is the reason why your local auto tinting shop assures you that bubbles are normal. On the contrary, other types of bubbling such as trapped dirt, soap and air are harmful and if these pop out right after tinting your vehicle, have them redo the installation. Also, other factors such as low quality window tint films, using ammonia based cleaners and accidentally piercing the film all contributes to bubbling. 

Types of Bubbling



  • Normal Bubbles or Blisters


Blisters are basically trapped water underneath the window tint. This occurs when the tint film is installed on the wet face of the window. If you happen to notice one, don’t worry because it will naturally disappear when the tint film cures, meaning that all the water has evaporated. 

Why does Window Tint Bubble and Turn Purple Flying Windows Tint
Ceramic window tint


  • Soap and Dirt Bubbles


When these type of bubbles appear, it indicates that there are problems with its installation. Basically, they are trapped dirt and soap solution underneath the window tint. What makes them harmful is that they stay there forever and will eventually damage the film. Unless you remove the film and remove the bubbles, they will stay there for a long time unlike blisters where they disappear after a few days. Another cause for this type of bubbling is using tint films with weak adhesion. Films with weak adhesion will have portions of its film bulging which allots space for air pockets to enter. These bubbles are easily recognizable as they are usually large and hazy in color unlike blisters where they are small and opaque. 

Preventive Measures

The best course of action against bubbling, or any other problems imaginable, is preventing them from developing in the first place. Here are some tips to consider in preventing bubbling:

  • Have it installed by a professional:Professional tint installers know every detail of installation and preparation to prevent bubbling. You should opt for auto tinting shop that gives warranties and is reputable to be guaranteed a high quality service. As long as we cannot get assurance from them, the feeling of uncertainty will make us anxious and be left behind not knowing what to do. This is especially true if the shop does not offer after service customer care. 
  • Choose high quality window tint films: Higher quality window tint films are less likely to bubble due to better adhesion and material integrity. 
  • Proper cleaning: Never use ammonia based cleaners in cleaning your windows. Doing so will corrode the film and cause premature peel off, causing bubbling. The correct way of cleaning is using a solution of soap and water on a microfiber cloth. 

Why does Window Tint Bubble and Turn Purple Flying Windows Tint

Removing Bubbles on your Window Tint

If bubbles appear weeks after auto window tinting, chances are there are lapses with its installation. What you should do is revisit the auto tinting shop and have them redo the films. They should have at least a policy or warranty on bubbling and the remedial work should cost you nothing. 

But if you want to remove bubbles for yourself, you can follow these steps:

Step 1: Heat your window. Tint films are easier to work with when the temperature is high because it can make the adhesive more pliable. You can let the car sit outside for a couple of hours but if the weather is not warm, you can heat the window tint films using hair driers. 

Step 2: Moisten the window. Applying cold water to the warm window tint films will loosen the adhesive which allow the bubbles to move freely underneath the films. 

Step 3: Remove all bubbles. There are two ways that you can do to achieve this, one is poking each bubble with a straight pin or you can use a stiff card to push out the bubbles onto the edges. Be careful when pinching the film, otherwise, you can damage the window itself. 

Step 4: Clean the window. Clean the window tint film with a microfiber cloth and check for any damages.

This was written by Steven Hopkinson owner /operator of Flying Window Tinting.  

`We have been in business in Orlando same location 

for 20 years

We serve the following locations

  • orlando
  • winter park
  •   alafaya
  • azalea park

We also provide the following service

  • Window tinting
  • tint removal
  • headlight cleaning
  • vinyl graphics

Contact us for free quotes on your vehicle

Window Tinting Specs: Misconceptions

llumar window tinting

Window Tinting Specs: Misconceptions

Some of our customers at Flying Window Tinting oftentimes confuse specifications on window tint films. This is important because as a customer, you must be knowledgeable about the products and services you want to purchase. 

Although we help our customers promptly with this issue, we also consider the best interests of our customers by teaching them some of the technicalities they need to know as one of our main responsibilities.

Window Tinting Specs: Misconceptions Flying Windows Tint
Fig 1: Total solar energy rejected by glass treated with window film

Here is a typical window tint film specification:

  • Visible Light Transmission (VLT): 70%
  • Infrared Rejection (IRR): 50%
  • UV Rejection (UR): 99%
  • Total Solar Energy Rejected (TSER): 50%

Now these specifications may be intimidating to some but it’s actually simple principles that can be understood. But before discussing each one of them, it’s important to know first what constitutes sunlight because it’s the governing factor for each one of them. 

Sunlight constitutes about 44% visible light, 53% infrared and 3% ultraviolet but it depends on which elevation and part you are in the globe. But this figure is the most accepted value which is based on ground level elevations. 

Types of Window Tint Specifications:

  • Visible Light Transmission: This metric describes the amount of visible light that is transmitted through the window tint film. So the lower the VLT ratings, the lower amount of visible light is transmitted through. Therefore, the film is darker in shade. 
  • Infrared Rejection: This metric describes the amount of infrared rays rejected by window tint films measured over the wavelength of 780nm to 2500nm. So the higher the IRR ratings, the higher the amount of infrared rays are rejected. Therefore, the window tint film reduces more heat. 
  • Ultraviolet Rejection: This metric describes the amount of ultraviolet rays rejected by window tint films measured at all types of UV rays such as UVA and UVB. Most window tint films rejects 99% of UV rays. 
  • Total Solar Energy Rejected: This metric describes the total amount of solar energy (UV + visible + IRR) that is rejected by the window tint films. Solar energy is the radiant light and heat from the sun. It’s also the combined energy of the three constituents of sunlight. The total amount of solar energy is also the amount of heat generated by sunlight, however, infrared rays contribute the most heat out from the total. 

Window Tinting Specs: Misconceptions Flying Windows Tint

Common Misconceptions of Window Tint Specifications:

1. The window tint I purchased can reject 99% of infrared rays, does it mean that there will be no heat inside my vehicle?

While it’s true that there are window tint films that indeed rejects 99% of infrared rays, it doesn’t mean a total heat rejection to the point where no heat will be felt inside the vehicle. Rejecting 99% of infrared rays would not reject 99% of the heat, but rather 99% of the 53% of infrared rays. The other constituents of sunlight also produces heat; albeit minimal, there are still heat present.

Also, beware of dealers that measure infrared heat rejection ratings of their window tint films. Chances are they’re only measuring a select range of wavelength that will produce the best rating for their window tint films, typically at the range from 900nm to 1100nm.

As an astute customer, you must ask IR ratings that are based on the whole range of infrared spectrum at 780nm to 2500nm. If they don’t provide you one, it’s time to back away. It’s most likely that their IR ratings are only a marketing ploy.

2. So if a window tint film’s TSER rating is high, would that mean that it’s a better performing film?

No, definitely not. Let’s not forget that the TSER rating is the amalgamation of the other three metrics (UV + visible + IRR). For instance, increasing the shade of film decreases its VLT ratings which in turn lowers the TSER rating of the film, but it doesn’t mean that a dark-shaded film is underperforming. In fact, a dark-shaded film is satisfactory because it’s highly reflective. 

To make an apple-to-apple comparison, consider comparing window films with the same VLT ratings and determine their TSER rating accordingly. The higher the TSER rating, the more effective the window tint film.

3. I purchased a highly reflective, dark-shaded window tint film, does that mean it rejects heat and UV rays significantly?

Not necessarily, when we say that a film is highly reflective — what it pertains to is its reflective capability only towards visible light. Other constituents of sunlight such as infrared and ultraviolet are not affected. 

To determine the effectiveness of a window tint film, you should look at the three metrics (VLT, IRR and UR) specifically to have a ball park estimate of its effectiveness. A better metric to gauge its effectiveness is finding its TSER ratings as discussed above. 

Contact Us!

Now all of these may seem intimidating and hard to understand because it really does. Save your time learning such terms, instead, call Flying Window Tinting for more information! We are more than willing to help you out and let the professionals do the job for you. 

Visit Us At:

  • 187 South Semoran Blvd., Orlando, FL 32807

Services Offered:

  • Window Tinting
  • Window Tint Removal
  • Headlight Cleaning
  • Vinyl Graphics Installation

We Serve These Locations:

  • Orlando, FL
  • Winter Park, FL
  • Alafaya, FL
  • Azalea Park, FL