Level method and vertical largely similar. The main difference in the placement of the glass, the glass arranged horizontally transmitted by the wheel, through the cathode lowe double glass, after passing through a series of valves lowe pinning hollow glass, also changes the degree of vacuum. When the glass reaches the main sputtering chamber, coating pressure is reached, the metal cathode target fixed single lowe glass, glass movement. In the glass through the cathode during the film forming. Selection of qualified supporting material is qualified hollow glass production necessary and sufficient conditions. No qualified supporting material is impossible to produce a high-performance insulating glass products, so selection is very critical aspect, according to the current status of the domestic production of insulating glass, double sealed mainstream production process, other processes in the supplementary status, and therefore constitute a double pros and cons of the various components of the quality-seal process is the focus of discussion, the main component constituting the double sealing process are: butyl rubber (PIB)