Low-E Glass
Low E glass, also called low radiation glass, is a film system product where the glass surface is covered with numerous layers of metal or other substances. Compared to regular glass and conventional architectural coated glass, its coating layer has the qualities of high transmittance to visible lig
Product Details
Low E glass belongs to Architecture Glass , also called low radiation glass, is a film system product where the glass surface is covered with numerous layers of metal or other substances. Compared to regular glass and conventional architectural coated glass, its coating layer has the qualities of high transmittance to visible light and strong reflection to medium and far infrared rays, making it superior in thermal insulation and good in light transmission.
Since modern structures must take into account not only functionality but also aesthetics, energy efficiency, and other factors, LOW E glass has, throughout time, grown to be the focus of public attention as the market has developed. Because it possesses these qualities, coated glass has become a commodity that consumers seek for.
Key components of building energy loss include glass on doors, windows, and external walls. What makes glass unique is that radiation is primarily used for heat transmission. Changes in heat loss are therefore required in order to modify the performance of glass, necessitating changes in surface performance. Glass's radiation efficiency will be significantly decreased following a film layer's application. Thus, while producing buildings using Low-E glass .
The visible light transmittance of Low-E glass is a measure of the performance of interior lighting and ranges theoretically from 0% to 95% (which is challenging to achieve with 6mm white glass). The apparent light reflectivity, or the degree of dazzling reflection, falls between 10% and 30% in the outdoor environment. China currently mandates that curtain walls have a visible light reflectance of no more than 30%.
Today, one of the most popular vacuum magnetron sputtering coating techniques in use worldwide is the offline manufacturing of Low-E glass. While the pyrolysis deposition approach at high temperatures is online, the sputtering method is not. Additionally, there are variances that are both horizontal and vertical depending on the various positions of glass transmission.
The functional film in "Low-E" glass production is a layer of pure silver film deposited by sputtering.
Low-E can be split into two categories from a process standpoint: offline vacuum magnetic sputtering and online deposition coating. There are three fundamental tones in terms of color: blue, green, and gray. Various thicknesses and combinations of materials can lead to different procedures. For instance, silver, gold (rose gold), neutral hues, and other somewhat unique hues.
Single piece of offline Low E glass Because the surface of Low E glass film is relatively soft, moisture and certain oxidants will cause it to oxidation slowly.
It is necessary to quickly convert offline Low-E glass into insulating glass and to remove the edge coating before creating the insulating glass. Water vapor, sulfides, and oxides entering the cavity will progressively lose the offline Low-E glass's insulating effectiveness due to the weak breathing effect of the glass, which will cause blackening, staining, and a lot of mold spots on the exterior.
One silver Typically, Low-E coated glass has five film layers total—one functional layer (the silver layer) plus additional metal and compound layers.
Two-tone silver Two functional layers (the silver layer) make up Low-E coated glass. Additional metal and compound layers bring the total number of film layers to nine. Nonetheless, compared to single silver, dual silver Low-E glass presents a far higher technical process control challenge.