Window film technology
Dyed Film
Dyed film is the cheapest type of window tint, using a coloured dye layer to reduce glare; it fades to purple over time and rejects little infrared heat.
Dyed films are made by dissolving a coloured dye into the adhesive or a separate layer of polyester. They cut glare and provide a tinted appearance but block only 15–30% of total solar energy and rely on absorption rather than rejection.
The major weakness is colour stability: in tropical sun, the organic dyes oxidise and the film turns purple within 12–24 months. Heat rejection also degrades as the dye breaks down. Dyed film does not interfere with signals because there is no metal, but it offers minimal protection against IR heat — the same heat that makes cabins unbearable in Singapore's afternoon sun.
We list dyed film for completeness only; Infratint does not recommend it for any Singapore vehicle.