Selective Wavelength Films

Selective Wavelength Films

Technology has changed since 3M invented window films years ago. Back then, increased sun control or heat gain reduction performance resulted primarily from depositing heavier levels of metal on the polyester film. This increased performance, however, resulted in a trade-off in the film's visible light transmittance.

Since then, 3M has developed films that manage the solar spectrum selectively. What this means is that "selective wavelength" films block more of the near infrared or heat portion of the spectrum and less of the visible light. Selective wavelength films provide an improved balance between performance and light shine without a compromise in performance.

This is important to many owners today as they strive to use natural light (day lighting) in their buildings. With 3M's "selective wavelength" films, owners can better maintain the energy efficient natural light and still help control temperature imbalances within the facility.

Ask to see the 3M Prestige line for the best example of Spectrum Selective films. The Prestige 70 is nearly clear, has no metal and is less reflective than glass itself, yet it eliminates an impressive 97% of heat producing Infrared light.

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