Buyer's guide · Window tint

The best window tint for heat, and how to read the numbers

Short answer

Judge a heat-rejecting tint by TSER, total solar energy rejected, at a shade that's legal where you drive. Infrared rejection alone can mislead, because infrared is only about half of the sun's energy. TRORO's strongest films, MQ Premium and Premium MQ Series, reject 65% of total solar energy and 99–99.8% of infrared.

Updated: · By the TRORO GCC team

Luxury car with TRORO MQ Series window film

The three numbers that matter

  • IR rejection is how much infrared the film stops. It's the heat you feel on your skin through the glass.
  • UV blocked protects your skin and stops seats and trim from fading. Most good films block 99% or more.
  • TSER (total solar energy rejected) counts all of the sun's energy together: infrared, visible light and UV. It's the best single measure of how much cooler the car stays.

Why 99% infrared isn't 99% of the heat

Sunlight at ground level carries around 52–55% of its energy as infrared, 42–43% as visible light and 3–5% as UV. A film can stop almost all the infrared and still let visible light through, and visible light warms the cabin too.

That's why TRORO MQ Premium rejects 99.8% of infrared but 65% of total solar energy. Both numbers are true. When a shop quotes only an infrared figure, ask for the TSER as well, measured at the shade you're buying.

Types of window film compared

TypeHow it worksHeat rejectionWatch out for
DyedDye absorbs lightLowCan fade. Mostly adds privacy
CarbonCarbon particles absorb heatMediumLess heat rejection than ceramic
Metalised, including titaniumA metal layer reflects heatMedium to highReflective films are banned in several GCC countries, and metal can affect phone and GPS signals
CeramicNon-metal particles absorb infraredHighCosts more, and quality varies by brand
Multi-layerMany thin layers tuned to reject heatHighCompare TSER at your shade. TRORO's MQ Series is multi-layer

General guide to film types. Always compare the data sheets of the exact films you're quoted.

As a price guide, dubizzle puts quality ceramic film at about AED 800–2,000 for a car in Dubai.

Does darker mean cooler?

No. Darkness tells you how much visible light gets through, not how much heat. A cheap dark film can feel hot, while a lighter multi-layer film can reject most of the infrared. That matters here, because most of the GCC limits how dark you can go. Check the tint law for your country first, then choose the highest TSER you can get at that shade.

Clear and non-reflective tint

If you want the windows to stay light, choose a film sold for visibility rather than privacy, such as TRORO's Premium GS Series. Avoid mirror-like films: they're banned in Saudi Arabia, Kuwait and Bahrain and in Abu Dhabi. A non-reflective film gives you heat rejection without the mirror effect.

TRORO window films side by side

FilmInfrared rejectedUV blockedTSERThickness
MQ Premium99.8%100% to 400 nm65%2 mil
Premium MQ Series99%100% to 400 nm65%2 mil
GS Premium97%99%59%2 mil
Premium GS Series96%99%59%2 mil

Figures from the TRORO brochure.

The MQ Series is colour-stable for over 8 years and also blocks blue light. See the full range on our car window tinting page.

FAQ

Common questions

What is the best tint for heat in the UAE?

Look for the highest TSER at a legal shade. TRORO's strongest films, MQ Premium and Premium MQ Series, reject 65% of total solar energy, and the UAE limit is 50%.

What does TSER mean in window tint?

Total solar energy rejected. It adds up infrared, visible light and UV, so it's a fairer measure of heat than an infrared figure alone.

Is ceramic tint better than carbon?

Usually, for heat. Ceramic films tend to reject more infrared, and they cost more. Compare TSER on the data sheets rather than the name on the box.

Will window tint block my phone or GPS signal?

Metalised films can affect signals. Carbon, ceramic and non-metal multi-layer films are the usual choice if that worries you.

Keep the heat outside.

Tell us your car and country, and we'll match a film to your local limit.

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