Film Properties

Technical-Specifications Definition

Solar protection specifications are provided in most window film products to allow users to have an idea of the type of window tints that they are selecting from. All performance data provided for our products is meant to be used for general guidance only.

Visible Light Transmission (VLT):

Percentage of visible light that passes through the window film, captured by light meters. A lighter film results in a higher visible light transmission. A film with lower VLT will block more light from entering through glass.

Visible Light Reflectance (VLR):

Percentage of visible light that is reflected by the window film, as measured by reflectance meters. A film with higher VLR will be more effective at controlling glare.

Infrared Reduction (1000nm):

Infrared reduction reading captured by common test equipment at wavelength 1000 nanometers (approximately at room temperature).

Infrared Reduction (1800nm):

Infrared reduction reading captured by spectrophotometers at 1800 nanometers wavelength (approximately summer mid-day sun temperature).

Shading Coefficient:

Proportion of solar heat gain when window film is applied, in comparison to a situation where no film has been applied. A lower shading coefficient means that the film is more effective in reducing amount of heat gain.

Total Solar Energy Rejected:

Percentage of Solar Energy that is reduced after passing through window film. Solar Energy consists of visible light, infrared radiation and ultraviolet light.

Ultraviolet Reduction:

Percentage of Ultraviolet light that is obstructed by window film. Ultraviolet light can cause fading and sun damage to skin.