3M Crystalline is available in 70%, 50%, 40% and 20%. This film's feature a proprietary, multi-layer optical film technology that combines over 200 layers in a film thinner than a Post-It*. This is how a clear film can reject more heat than a darker film. Crystalline films reject up to 97% of the suns heat producing infrared light and block up to 60% of the heat coming through your windows.
This film is also non-metallized and will never turn purple. Will also include lifetime warranty against bubbling, cracking, peeling, fading and change of color.