With 99.5% protection against UVA & UVB rays, this window film offers the best possible UV protection and slows down the fading of objects by a factor of 3-4! Thanks to its clear, transparent appearance, it is inconspicuous and practically undetectable. It also offers effective protection against bird strike.
This film offers 99.5% UV protection and slows down the fading of objects by a factor of 3-4! It also has a light grey tint, which reduces glare by over 15% and rejects heat by 20%. The film therefore provides pleasant sun protection without being visually conspicuous.
This adhesive-free UV protection film for indoor installation offers perfect UV protection (99.4%). The fading of articles is effectively slowed down by a factor of 3-4. The transparency is slightly blurred (approx. 10%) and this film also offers protection against bird strike.
Fading Caused by Sunlight: Why UVA Is Worse Than UVB
Here is a brief explanation why:
- UVA rays penetrate deeper into materials and are present in much larger quantities in sunlight than UVB. They trigger photochemical reactions that break down dyes and thus lead to fading and color changes—especially in textiles, wood, plastics, and paper.
- UVB rays have higher energy, but are largely filtered out by the Earth's atmosphere (especially the ozone layer), so less UVB actually reaches surfaces. UVB affects the skin more strongly (sunburn) but is less relevant for material fading.
Conclusion: UVA radiation is the main cause of fading and material aging caused by sunlight. This is why high-quality UV protection films, glass, or coatings primarily include filters against UVA rays.
The different types of UV radiation
Just like visible light is divided into different colors, UV radiation is divided into three ranges: UVA, UVB, and UVC.
| Classification of UV light according to DIN 5031 | Wavelength |
|---|---|
| UV-A | 315 nm - 380 nm |
| UV-B | 280 nm - 315 nm |
| UV-C | 100 nm - 280 nm |
- The UVC rays are the most energetic due to their short wavelength. They are so intense that prolonged exposure would be fatal to humans. Fortunately, these UV rays are completely absorbed by the Earth's atmosphere and do not reach the surface.
- The UVB radiation is partially weakened by the ozone layer, clouds, and smog. It accounts for only about 5% of the total UV spectrum. UVB rays are responsible for vitamin D production in the body and tanning of the skin. Too much exposure causes sunburn.
- The UVA radiation passes through the atmosphere largely unfiltered, similar to visible light. It penetrates deeper into the skin than UVB rays and, with excessive exposure, leads to premature skin aging. There is also an increased risk of skin cancer.
The radiation spectrum of sunlight
The sun’s rays consist of light waves of different frequencies. The shorter the wavelength, the higher the energy and the stronger the effect when the rays hit a surface.
The following infographic shows the emission spectrum of the sun. The visible light spectrum for humans lies roughly between wavelengths of 400 and 780 nm. To the left of 400 nm begins the ultraviolet (UV) range, which is no longer visible to the human eye. This extends down to about 200 nm. UV radiation in natural sunlight is primarily responsible for the fading of objects and can also cause skin changes if people are exposed to sunlight for too long without protection.
The most effective and energetic rays of the sun are ultraviolet rays (UV rays) with wavelengths between 100 – 380 nanometers (nm).
Effective protection with UV protection film
It is therefore important to protect yourself from excessive exposure to sunlight. Outdoors, protection is achieved by regularly applying sunscreen with a high SPF. Indoors, sunlight usually enters through glass windows. Standard window panes provide a certain level of UV protection, but this typically only covers the UVB and UVC ranges.
An effective protection against all UV radiation on glass surfaces can easily be retrofitted by applying a UV protection film. These films are crystal clear, self-adhesive, and visually unobtrusive. When cut to size, window films can be installed quickly and provide long-term UV protection for both people and objects indoors.
UV protection film demonstrably blocks UV radiation
A UV protection film must primarily block the strongly penetrating UVA and UVB rays below wavelengths of 380 nm to protect objects behind it from fading.
The chart on the left shows measurement results of our UV protection film for wavelengths between 250 and 1000 nm. The curve demonstrates that UV rays up to 378.1 nm are blocked 100%. Only above this range does UV transmission increase. This results in 99.5% protection against UV radiation. High-quality UV protection products are characterized by shielding above 99%, while conventional products often only just reach this level.
In theory, despite the protection film, wavelengths above 378 nm can still affect objects behind it. A full 100% protection cannot be guaranteed. However, an effective UV protection film can slow down fading by a factor of 3–5.
Five advantages of UV protection films
Extended lifespan: UV protection films protect objects from fading, yellowing, and degradation, thereby extending product lifespan.
Improved protection: UV protection films can block up to 99% of UV light, ensuring enhanced protection against UV damage.
Cost reduction: By extending the lifespan of objects, UV protection films help reduce costs by minimizing the need for replacements and repairs.
Easy application: UV protection films are easy to apply and can be installed on a wide range of materials with minimal effort.
Enhanced appearance: UV protection films help objects and materials maintain their appearance longer by preventing fading and yellowing. They are also available in various colors and designs, offering opportunities for aesthetic enhancement and customization.
FAQs on UV protection films
UV protection films slow down the fading of objects that are exposed to sunlight near windows. The sun's UV rays fade all surfaces over time. UV protection film slows down this process by a factor of 3-4. In addition, UV protection films can effectively prevent bird strike on windows because the birds can see the reflected UV light and therefore recognise the UV film as a grey wall.
There are self-adhesive UV protection films that stick firmly to the pane thanks to the film adhesive on the back. Once installed wet, they last a very long time and can only be removed once without leaving any residue.
Self-adhesive UV protection films have a transparent adhesive on the back, just like a sticker. This is covered by a protective film, which must first be removed. The adhesive side and the windscreen are then sprayed with water. The film is then placed on the glass and the water is squeezed out from under the film.
To remove a UV protection film, it is gripped at one corner and then slowly pulled off at a wrong angle. In the case of adhesive films, the film can be heated by hand with a hair dryer to dissolve the film adhesive.