Window tinting enhances privacy, reduces glare, and protects your vehicle’s interior from UV rays. However, over time, some vehicle owners notice their window tint turning purple or developing bubbles. If this is happening to your car, understanding the root causes can help you prevent further damage and choose the best course of action.

Common Causes of Tint Turning Purple or Bubbling

Issue	Primary Cause	Solution
Purple Tint	Low-quality dyed film	Replace with a high-quality tint
Bubbling	Poor installation or adhesive failure	Reapply or replace the tint
Peeling	UV exposure weakening adhesive	Remove and reapply tint
Hazy Tint	Moisture trapped under the film	Allow curing or reinstall

Key Takeaways

• Window tint turns purple due to low-quality dyed film breaking down from UV exposure.
• Bubbling occurs due to poor installation or adhesive failure over time.
• High-quality ceramic or carbon tint prevents discoloration and bubbling.
• Professional installation ensures longevity and prevents common issues.

Causes of Window Tint Turning Purple

1. Low-Quality Dyed Film

If your window tint is turning purple, it is likely due to the use of low-grade dyed film. Dyed films contain colorants that break down over time when exposed to sunlight. As a result, the original black tint fades into a purplish hue due to the degradation of blue and yellow pigments, leaving only the red hues visible.

How to Prevent It:

• Choose ceramic or carbon-based window tint, which does not rely on dye for color stability.
• Opt for high-quality film brands that offer UV-resistant properties.
• Look for tint warranties that guarantee against fading.

Causes of Window Tint Bubbling

2. Adhesive Failure

Bubbles appearing on your tint often indicate a failure in the adhesive layer. This happens due to:

• Improper installation – If the film was not correctly applied, air pockets can form.
• Exposure to heat and sunlight – Over time, excessive heat can weaken the adhesive, causing it to separate from the glass.
• Aging tint – If your tint is several years old, the adhesive may be naturally degrading.

How to Fix It:

• Small bubbles may be removed by heating the film with a heat gun and using a squeegee to press the adhesive back down.
• Large bubbles typically mean the film has completely failed and should be replaced.

3. Moisture Trapped Under the Tint

Newly installed window tints can sometimes appear hazy or have small bubbles due to trapped moisture. This is common and usually resolves itself during the curing process, which takes a few days to weeks depending on climate conditions.

Solution:

• Wait for the curing process to complete before assuming the tint has failed.
• Avoid rolling down windows for at least 48 hours after installation.

How to Prevent Window Tint Issues

To ensure your tint lasts long without discoloration or bubbling, follow these key tips:

1. Choose High-Quality Window Tint Film

Investing in premium window tint film prevents fading, bubbling, and peeling. The best options include:

• Ceramic Tint – Blocks UV rays and infrared heat without fading.
• Carbon Tint – Provides durability and heat resistance without dyes.
• Metallic Tint – Reflects heat but may interfere with electronic signals.

2. Get Professional Installation

Poor installation leads to premature tint failure. A professional tint installer ensures:

• Proper film application without air bubbles or creases.
• Use of high-quality adhesives that withstand temperature changes.
• Even cuts and coverage for a seamless look.

3. Avoid DIY Tint Kits

While DIY kits may seem cost-effective, they often lead to installation mistakes like:

• Uneven application.
• Trapped dust and air bubbles.
• Misalignment or peeling edges.

4. Maintain Your Window Tint Properly

Good maintenance extends the life of your tint:

• Use ammonia-free cleaners to avoid damaging the adhesive.
• Avoid sharp objects when cleaning to prevent scratches.
• Regularly inspect your tint for signs of wear and tear.

When Should You Replace Your Window Tint?

If your window tint is severely discolored, bubbling excessively, or peeling, it is time for a replacement. Look for signs such as:

• Large, persistent bubbles that don’t go away with heat treatment.
• A faded or purple tint that reduces visibility.
• Cracking or peeling edges.

Conclusion

If your window tint is turning purple or bubbling, it is likely due to low-quality film, adhesive failure, or improper installation. The best solution is to invest in high-quality ceramic or carbon-based tint and have it installed by a professional. Proper maintenance and avoiding DIY kits can also extend the life of your tint, ensuring it stays in great condition for years to come.