Used widely in homes and commercial buildings for protection against windstorms and break-ins. Does not change the appearance of the windows at all- it is completely clear and unnoticeable. Provides shatter-resistant qualities of laminated glass (like a windshield of a vehicle). Reduces 95% UV rays as well, but provides little heat protection, only around 13%. This product is certified by the City & County of Honolulu to bring plain (Annealed) plate glass up to "safety-glazing" building code and is the most popular choice for security film upgrade for homeowners that want to upgrade their windows to the safety glazing level, and do not need or want to add any solar protection or privacy benefits.