Color Stable Dyed Carbon Window FilmColor Stable Dyed Carbon Film Color Stable Dyed Carbon Film consists of a layer of dyed polyester at its base, which absorbs solar energy and reduces the amount of heat entering the interior of the vehicle. The carbon technology makes it more durable and no color changing during time. Product VLT IRR UVR TSER Color Thickness (mil) CS70 74% 41% 99% 30% Clear 2 CS50 52% 22% 99% 30% Smoke 2 CS35 36% 25% 99% 37% Black 2 CS05 3% 65% 99% 66% Black 2 *VLT