... paint on window glass 2.Energy saving and heat insulated 3.Lasts for 10 years,Anti-UV 4. ... C, so the air-conditioning may save energy 30% ~ 40%. But in winter, it can block infrared light out, ... 3 C ~5 C, save energy 30% ~ 40%. So it has a significant two-way energy-saving ... no surface layer and wrinkle defect, no bubblingTemperature resistance(-40-80°C cycling)adhesive force:0 grade, no surface ...