Coated glass is made of one or more layers of metal or other compound films on the surface of high-quality glass by using vacuum coating machine and coating technology in vacuum environment. The infrared part of sunlight has high reflectivity. The main function of coating is to control the sunlight to absorb, transmit or reflect the radiation of glass directly according to the required proportion, and produce different colors 。

Function of coated glass: for example, the requirements for glass are higher and higher. Ordinary glass obviously can't meet the requirements for daylighting function and line of sight shielding function. If transparent glass is directly used in the furnace like summer and strong sunlight directly shines into the room, the indoor ecological environment can be imagined. The appearance of coated glass greatly improves this problem.