... 1.Nano coating paint on window glass 2.Energy saving and heat insulated 3.Lasts for 10 years, ... ~ 40%. So it has a significant two-way energy-saving effect.2. The coating let all the visible light ... rays, so provide effective protection of human health.4. With water as solvent, it is non-toxic, tasteless, security ... performance changes Nano coating paint on window glass/energy saving and heat insulated