Sure thing! The UV radiation from the sun triggers a change to the structure of a photochromic compound. Technically speaking, this is a reversible photochemical reaction where an “absorption band” in the visible part of the electromagnetic spectrum changes dramatically in strength or wavelength. This change of molecular structure manifests itself as an adaption of color. These ‘smart’ nanomaterials experience a reversible change of structure when exposed to UV radiation. Photochromic is a characteristic of special molecular compounds. Literally speaking, photochromic is the combination of two words: “photo” meaning ‘light’ and “chromic” meaning “colour”. Designed to adapt to your environment, photochromic window films share all the same benefits of conventional window films but have a special adaptive feature craved by homeowners and building design professionals – the ability to darken when exposed to sunlight, hence further reducing heat and sun glare streaming through glass when needed most. Photochromic window films are the next generation of retro-fit window film technology. Here are all your questions about the newest thing in window film, answered.

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