Nanometer liquid film can be sprayed with furniture, decoration and other aspects, not only to ensure that the furniture is in a constant temperature for a long time, but also protects the goods from ultraviolet damage. After use, it is equivalent to covering the surface of the object with a layer of glass cover, which not only makes the object appear brighter and free from dust, but also blocks the damage of the sun. At present, it is widely used in the fields of building glass heat insulation and energy saving, important building weatherproof erosion, home smart cleaning, floor skid prevention, and decoration stone radiation protection. Heat-insulating glass coating is a combination of waterproof, moisture-proof, anti-bacterial, anti-mildew and other functions. Heat-insulating glass coatings are the products closest to people's lives in nanotechnology. Insulating glass coating is a full expression of nanotechnology Breakthrough segmentation filter technology can filter infrared, ultraviolet and other thermal components while ensuring good visible light transmission, and effectively block solar thermal radiation. The thickness of the insulating glass coating and the surface of the object is only 5 micrometers, but it has the equivalent of three layers of conventional glass insulation. According to the investigation, heat-insulating glass coatings are fully embodied in nanotechnology. The principle of heat insulation is that nano-sized indium tin oxide and antimony tin oxide are suspended in an inert silicon benzene to form a filter layer, and the micrometer-metering ultra-thin type is colorless and transparent. The operation is simple, spraying paint on the surface of the building allows the building to have a good thermal insulation function, and at the same time the function of UV protection will increase the life span of the building.