3M Color Stable's appearance rivals tinted factory glass, never turns purple, and provides high heat rejection with no signal interference! 3M's revolutionary nano-carbon polyester provides an incredible look, amazing color stability, and is non-metallized to ensure no signal interference.
While most other window film companies buy their polyester from someone else, 3M makes its own polyester. During this process, 3M patented a technology for producing its own nano-carbon polyester. This revolutionary and unique process, allows for maximum heat rejection without a metallized film, which can interfere with radio and satellite signals. It also gives our films a stylish look with outstanding color stability. In fact, it's so advanced that in time-based tests, 3M Color Stable films never turned purple while conventional dyed films rapidly changed to a purple color.
These darker shaded films are designed to reject solar heat that is produced from visible light. Color Stable rejects up to 57% of the heat coming through your windows. Color Stable films also provide significant glare relief, allowing only 5% to 50% of the light into your car.