Antimicrobial Window Films

ZIR Antimicrobial Technology

In the past two decades, surface protection films containing metal nanoparticles have been used to provide antimicrobial protection on glass surfaces. These matured technologies were not largely used on window films as copper or silver based antimicrobial coatings do substantially increase the cost of entry-level window films.

In general, silver nanoparticles have better optical clarity than copper-based coatings. However, in warmer and humid climates, premium versions require special anti-oxidation additives to be added to the silver nanoparticles. Doing so, increases the cost and compromises clarity as strong light-source at certain wavelength can trigger undesired visible light distortion or change in light intensity due to the complex and uneven refractive index on the thin film’s surface (Nano-silver + Antioxidation coating + SR Coating).

As window films are constantly exposed to elements of weather, ZIR’s nanoceramics-based antimicrobial technology is less reactive than metal-based solutions. They are more stable under normal conditions and offers better longevity in challenging humid environments. Ceramics also require minimal addition of protective chemicals to be added to the antimicrobial surface, which will result in lower haze & hue.