When a film is applied, doesn the glass crack because of thermal stress?
A. When a colored film (blocking ratio of 0.5 or less) is applied to a glass which receives sunlight directly, solar heat absorption of the glass increases, and the temperature difference between the glass periphery and the glass surface becomes large so that the probability of the glass cracking under thermal stress becomes higher. Our transparent window films, such as LG200 and LG440, will never cause cracking due to thermal stress. Additionally, LGE240 with a shielding ratio of 0.76 also will never cause thermal stress cracking of the glass.
