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Window film technology

Carbon Film

Carbon film uses carbon-particle dyes to absorb solar heat and UV; it is more stable than dyed film but rejects less infrared than ceramic.

Carbon films use a uniform layer of fine carbon particles bonded into the polyester substrate. Because carbon is inert and non-metallic, the film does not fade to purple the way dyed-only films do, and it stays signal-friendly.

Carbon sits between dyed and ceramic on the performance ladder. A typical mid-tier carbon film blocks around 99% of UV and roughly 40–55% of total solar energy. It is a sensible upgrade from dyed tint, especially for daily drivers parked in covered HDB lots or office basements where peak IR rejection is less critical.

For Singapore conditions where vehicles are often exposed to direct equatorial sun, carbon is acceptable for back/side windows but most workshops will recommend ceramic for the windshield, where IR rejection matters most to keep the dashboard and steering wheel cool.