Photochromic Window Film

Photochromic Window Film That Reacts To The Sunlight

Bio Nano-Ceramic combined with Photochromic window film technology, has enabled us to provide ultimate and uncompromising transitional window film.  Changing the tint of of your glazing according to the varying sunlight. The same effect as seen with photochromic sunglasses and new windows.

The transitional window film is installed to the inside of your glass. When exposed to the sun’s harmful Ultra Violet Light (UV), like sunglasses a photochromic chemical reaction takes place in the film and darkens the glass with a tint. Reducing the sun’s UV Light, Heat and Glare whilst still maintaining a clear view looking out.

Photochromic window film reacts to the sun automatically. Offering an effective and reliable protection from the sun without mechnical or electrical use.

Comfort of photochromic window film

  • Up to to 99.5% protection from the sun’s harmful UV radiation. The main cause of fading and skin cancer.
  • Up to 95% infrared solar heat protection.
  • Reduce the sun’ glare.
  • Works automatically.
  • Zero maintenance.
  • 5 – 10 year manufactures warranty

Photochromic window film will reduce the sun’s glare when needed, without blocking your view like traditional window blinds or curtains. This offers a unique advantage. On dull or cloudy days and at night the tinting produced by the film is minimal. Enabling a clear view in and out of the window and allow more natural light to enter the room. The photochromic film will only react when the sun’s rays intensify during the day.

Additional benifits with our photochromic window film include:-

  • Protection from shatterd glass – Help protect people working and living near glass. Retain the glass in the event of breakage. Increase glass security.
  • Skin protection – Living or working near glass can leave you exposed to UV-B. Prolong exposure over many years has been linked to skin cancer, cataracts and other disorders.

How it works?

Our photochromic window film uses a precious metal magnetron spluttering technique and nano-ceramic technology particle coating technology. For the IR of solar heat reduction, this is achieved by a subtle silver reflective coating.

When exposed to the sun’s UV light. The photochromic film molecules react to create a protective darkening effect or tint. The molecules react by changing there shape/structure to absorb the light when exposed to the UV Light radiation.

The film darkens or tints fast within 10 minutes. Cutting the glare by up to 85% and reduce the UV Light by 99.5%.

As the UV Light goes away the molecules in the film return to their original state and the tint diminishes.

TWF R80 Technical Standards

TWF R80 is the latest transitional photochromic window film available. It starts at a high clarity of 72 VLT, clearer than our other photochromic films, and darkens to a VLT of 25. TWR R80 retains a greyscale tint.

As well as having the strongest glare control for transitional film, TWF R80 has outstanding protection against the sun’s harmful rays with an IR rejection of 95% and UV rejection of 99%.

It also has a good SC rating of 0.48, adding effective heat rejection to its capabilities.

The film is supplied on a roll of 1520mm x 30m, minimum 5m long roll per order.

Transitional window film

  • Thickness: 0.076mm
  • VLT: 72-25
  • IRR (1400nm): 92% – 95%
  • IRR (959nm): 84% – 89%
  • VLR: 11%
  • UVR: 99%
  • TSER: 57%
  • SHGC: 0.45
  • SC: 0.48
  • U-Factor: 1.80
  • Technology: Nano-ceramic

If you would like help choosing the right film? Call us on 01428 751004 for advice or a Free No Obligation quotation. Or visit our online shop for DIY window films.

ASTM International (ASTM) Standards

ASTM E84 Standard Test Method for Surface Burning Characteristics of Building Materials

ASTM E308 Standard Practice for Computing the Colours of Objects by Using the CIE System

ASTM E903 Standard Test Method for Solar Absorbance, Reflectance, and Transmittance of Materials UsingIntegrating Spheres (Withdrawn 2005)

ASTM G26 Practice for Operating Light- Exposure Apparatus (Xenon-Arc Type) With and Without Water for Exposure of Nonmetallic Materials (Withdrawn 2000)

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