Purchasing new hardware? Read our latest product comparisons

Asahi's auto glass blocks UV, filters out IR rays


December 21, 2012

Toyota's F "Ciel" Vitz is one of the models using Asahi's new tempered glass, that offers 99 percent UV protection and IR filtration

Toyota's F "Ciel" Vitz is one of the models using Asahi's new tempered glass, that offers 99 percent UV protection and IR filtration

As prolonged exposure to sunlight increasingly becomes a health hazard, causing skin problems and even cancer, automakers have started to incorporate glass that blocks harmful ultraviolet light. Japan's Asahi Glass Co (AGC) has added to its portfolio a new line of tempered front window glass called UV Verre Premium Cool on, which it says is the first of its kind to block about 99 percent of ultraviolet radiation, along with infrared (IR) rays.

AGC integrated several of its technologies in glass materials, coatings and chemicals to produce UV Verre Premium Cool. During tests, the tempered glass managed to keep temperatures inside a car 2º C (3.6º F) lower than equivalent tempered products, therefore avoiding what the company calls "a frizzling sensation" – which is another way of saying "a scorching sensation." Skin surface temperature was kept at 39.4º C (102.9º F), while with other models the skin surface temperature was 41.4º C (106.5º F) and frizzling sensation was not avoided.

The new product builds upon the company's UV Verre Premium glass launched in 2010, which blocks around 99 percent of UV rays (based on ISO 9050 standards) and has been adopted by 15 car models. For the Premium Cool version, AGC has added another layer that absorbs IR light along with making the glass stronger, so it isn't scratched when the window is being opened or closed.

Besides human health issues, the sun-blocking glass improves air-conditioning performance, which consequently contributes to fuel efficiency and higher mileage. This means that on top of helping prevent cancer, the UV- and IR-resistant glass can help mitigate the car’s environmental footprint.

UV Verre Premium Cool on is already available on new cars such as Toyota’s Vitz subcompact units the F "Ciel" and F "Smart Stop."

Source: AGC

About the Author
Antonio Pasolini Brazilian-Italian Antonio Pasolini graduated in journalism in Brazil before heading out to London for an MA in film and television studies. He fell in love with the city and spent 13 years there as a film reviewer before settling back in Brazil. Antonio's passion for green issues - and the outdoors - eventually got the best of him and since 2007 he's been writing about alternative energy, sustainability and new technology. All articles by Antonio Pasolini

All foreign and domestic cars and suv should have this glass Standard, as well as automatic tinting for oncomming traffic with those HID lights that are blinding (including really sunny days).

I'm all for high intensity discharge streets lamps. I see them more as a hazard for cars faceing incomming traffic especially..


Usual glass also blocks more than 95% of UV. So I see no reason to describe this as a "new discovery".

Pavel Chernov

Yeah, seems so, Pavel.


But greater UV and IR blocking is very good in a hot, sunny climate near the Antarctic ozone hole... and many people with pale Anglo-Celtic or Northern European skin...

... like Australia, New Zealand, Argentina, South Africa.

The standard automotive glass lets too much heat into cars, and these days the windscreen represents a very large fraction of that given its large size and raked angle, but local laws prohibit putting tinted films on it.

Not so much a 'new discovery', but a much appreciated 'new product'... just hoping they'll make one to fit a VW Golf Series V...

Wes Black
Post a Comment

Login with your Gizmag account:

Related Articles
Looking for something? Search our articles