Skip to content
Infratint logo

Performance metrics & physics

Near-Infrared (NIR)

Near-infrared (NIR) is the infrared band immediately above visible light, roughly 780–2500 nm, and is the dominant source of solar heat felt inside a vehicle.

NIR carries most of the solar heat that bakes a parked car. Without IR rejection, this energy passes through glass, is absorbed by interior surfaces, and re-radiates as long-wavelength heat — creating the greenhouse effect that makes cabins unbearable in Singapore noon sun.

Quality ceramic and multi-layer films target NIR specifically. Platinum99 rejects up to 99% of peak NIR wavelengths.

Cutting NIR is the single highest-leverage action for cabin comfort in tropical conditions. Visible-light darkness alone (low VLT) cuts only a fraction of the felt heat.