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Window film technology

Haze Percentage

Haze percentage quantifies the optical clarity loss in a window film — the lower the haze, the closer the film looks to bare glass; premium ceramics are under 1%.

Haze is measured by ASTM D1003. Light passes through the film, and the portion scattered by more than 2.5° from the straight-through path counts as haze.

For automotive applications, haze under 1% is essentially invisible. Haze above 2% starts to look cloudy in bright lighting. Films above 5% haze are typically only acceptable for privacy applications, never windscreens.

For Singapore drivers, low-haze films matter most on the windscreen, where any cloudiness is in the centre of vision. Premium ceramics like Platinum99 specify haze under 1% across the warranty period.