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Window film technology

Infrared Radiation

Infrared radiation is electromagnetic energy at wavelengths above visible light (≥780 nm) and is the dominant source of solar heat felt inside a vehicle cabin.

Solar radiation reaching Earth's surface is roughly 5% UV, 43% visible light, and 52% infrared. Infrared is what makes a car feel hot inside even when the cabin is shaded by glass — IR penetrates and is absorbed by interior surfaces, which then re-radiate heat.

The IR band most relevant to window tinting is near-infrared (NIR), 780–2500 nm. Quality ceramic and multi-layer films target this band specifically.

For Singapore conditions where solar irradiance can exceed 1000 W/m² at noon, rejecting the IR component is essential. Cutting 90%+ of NIR can drop cabin temperature by 8–14 °C, which compounds into measurable aircon-energy savings.