Do Tinted Windows Block UV Rays? Here’s the Science
When you think about window tinting, you might picture sleek, shaded glass that adds style to your car. But beyond aesthetics, do tinted windows block UV? Yes! It helps protect you and your vehicle from harmful ultraviolet (UV) rays.
“Prolonged exposure to UV radiation can lead to skin damage, increase your risk of skin cancer, and cause your car’s interior to fade or crack. The right window tint can act as a powerful barrier, shielding you from up to 99% of these harmful rays.
“However, not all tints are created equal, and understanding what blocks UV rays effectively is key to making the right choice,” said Mobile Tinter Steven Radja.
In this blog post, we’ll go into:
- Car window tint and UV window protection—delivered wherever you are
- Do tinted windows block UV?
- Not all window tints provide UV protection!
- Stop UV with these tint levels
- What to look for in UV-blocking window tints for your car
- Legal considerations
Do Tinted Windows Block UV?
Yes, if the right product is used. Premium window tints are specifically engineered to absorb or reflect ultraviolet radiation. Some tints can block up to 99% of UV rays, offering exceptional protection for both your car’s interior and its occupants.
Window tinting UV protection not only safeguards your upholstery from fading and cracking but also protects your skin. Prolonged exposure to UV radiation, even while driving, can increase the risk of skin damage and long-term health issues. In fact, the Skin Cancer Foundation recommends SPF window tint as part of a proactive skin protection routine.
However, not all window tints are created equal. Budget options often lack the advanced materials necessary to effectively block UV rays. For maximum protection, invest in premium brands.
Not All Window Tints Provide UV Protection!
Not all window tints are created equal, and some fail to provide any meaningful UV protection. Factory window tint is one common culprit. Often called “privacy glass,” factory tint is made with tinted pigment embedded in the glass itself, typically with a 15–30% visible light transmission (VLT) rating. While this may add privacy and a sleek look, it offers no UV protection.
Unlike factory tint, aftermarket window film is more reliable if you’re looking for UV protection. These solutions are applied over existing glass and designed with advanced materials to block up to 99% of UV rays. Cosmetic-only tints may look good, but they won’t shield your car’s interior or keep your passengers comfortable.
Stop UV Rays With These Tint Levels
Window tint levels (and VLT) determine how much light passes through your car’s windows. The lower the percentage, the darker the tint and the less light that gets in.
Here’s a breakdown of UV tint for cars to help you decide.
70% Tint
- Appearance: Nearly clear, with minimal darkening.
- Benefits: Offers basic UV protection and better temperature control while maintaining full visibility.
- Ideal For: Drivers who want subtle sun protection without altering their car’s appearance.
50% Tint
- Appearance: Lightly shaded with a balanced look.
- Benefits: Blocks 50% of visible light, reducing glare and protecting interiors without overly darkening your windows.
- Ideal For: Those prioritizing UV protection and comfort over privacy.
35% Tint
- Appearance: A sleek, stylish tint that provides noticeable shading.
- Benefits: Offers moderate privacy and effective UV blocking without significantly reducing visibility.
- Ideal For: Drivers seeking a blend of privacy, style, and legal compliance in many states.
20% Tint
- Appearance: Dark enough to obscure most views into the car.
- Benefits: High privacy and excellent UV protection, but visibility can be reduced, especially at night.
- Ideal For: Owners prioritizing privacy and sun protection, with some compromise on nighttime visibility. Check your local state laws.
15% Tint
- Appearance: Very dark, creating a bold, jet-black look.
- Benefits: Provides nearly full privacy and UV blocking.
- Ideal For: Those who love dark tints but we recommend you check the legal level in your state.

What to Look for in UV-Blocking Window Tint for Your Car
When it comes to shielding yourself and your car’s interior from harmful UV rays, not all window tints are created equal. Each type of UV protection tint offers unique benefits and drawbacks, so it’s important to find the right fit.
Dyed Window Tints
- Benefits: Budget-friendly with basic UV protection and a sleek look. Helps reduce glare and adds privacy.
- Drawbacks: May fade over time, diminishing its effectiveness against UV rays.
- Best For: Cost-conscious drivers who want simple protection and privacy without a long-term commitment.
Metalized Window Tints
- Benefits: Excellent UV and heat rejection thanks to embedded metallic particles. Durable and scratch-resistant.
- Drawbacks: Can interfere with cell phone, GPS, and radio signals.
- Best For: Drivers prioritizing heat and UV protection who don’t rely heavily on in-car electronics.
Carbon Window Tints
- Benefits: Blocks up to 40% of infrared rays and 99% of UV rays. Won’t interfere with signals and resists fading over time.
- Drawbacks: Slightly more expensive than dyed or metallic tints.
- Best For: Drivers seeking long-lasting protection, signal compatibility, and enhanced interior comfort.
Ceramic Window Tints
- Benefits: Top-tier UV and heat protection, blocking 99% of UV rays and providing glare resistance without signal interference. Highly durable and fade-resistant.
- Drawbacks: Higher upfront cost.
- Best For: Car owners prioritizing maximum protection and long-term performance over budget concerns.
Crystalline Window Tints
- Benefits: Maintains a nearly clear appearance while blocking up to 99% of UV rays and significant heat. Ideal for preserving visibility.
- Drawbacks: Premium price point.
- Best For: Drivers who want effective UV protection without darkening their windows or altering their car’s aesthetic.
Hybrid Window Tints
- Benefits: Combines dyed and metalized technology for balanced UV protection, glare reduction, and privacy.
- Drawbacks: Moderate signal interference and limited heat rejection compared to ceramic tints.
- Best For: Those looking for a middle-ground solution offering decent performance at a reasonable cost.
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Legal Considerations
When it comes to window tinting, knowing the law is as important as choosing the right tint. Regulations vary widely depending on where you live, and failing to comply could mean fines or mandatory tint removal. Be sure to consult with your local jurisdiction for clear direction on what is and is not acceptable for vehicle window tints.
1. VLT Percentages
VLT percentage determines how much light passes through your tinted windows. A lower percentage means darker tints, which many regions restrict for front and side windows. For example, in Illinois the tint must allow more than 35% of light.
2. Restrictions on Tint Colors
Certain tint colors, such as red, blue, or yellow, might be prohibited in your area because they can impair visibility or distract other drivers. Stick to neutral tones unless you’re certain the color you choose complies with local laws.
3. Reflectivity Limits
Reflective tints, which create a mirror-like effect, are restricted in many areas. While they help reduce glare and heat, overly reflective tints can pose safety risks by blinding other drivers. Check your state’s rules on maximum allowable reflectivity levels.
4. Medical Exemptions
If you have a medical condition that requires extra UV protection, such as a skin condition, you might qualify for an exemption to use darker tints than generally permitted. Always carry proper documentation if you’re applying for or using a medical exemption.
Car Window Tint and UV Window Protection—Delivered Wherever You Are
Protect yourself and your car from harmful UV rays with expert window tinting from Mobile Tinters.
At work? Don’t want to take the chance of taking your car into the shop? We’ll apply tinting wherever you are. With 10+ years’ of experience as Illinois’ leading window tinters, we cut and apply tint on-site.
Don’t wait—contact Mobile Tinters today for a free quote.