Panasonic has manufactured and rolled out thin vacuum insulated glass with approx., 6mm thickness which is very thin. The glass featured with industry's top class insulation performance*6 , where the technologies that Panasonic has retained in the course of developing and manufacturing Plasma Display panels, are applied.
In addition to the float glass*7 specifications that have been rolled out so far, we have developed vacuum insulated glass using tempered glass specifications. The glass with approximately 8mm thickness, has realized 0.58W/m2・K, which is industry's top class thermal transmittance
In manufacturing process, vacuum insulated glass is welded with a sealing material that was made by melting two sheets of glass at a high temperature. In general, tempered glass loses its strength when heated at a high temperature. Therefore, we newly developed original 'Ultra-low temperature sealing material'. With the new sealing material, we have realized welding tempered glasses at a temperature range without reducing their strength. In addition, we have succeeded in putting the pillars that support the vacuum layer into practical use for transparent vacuum insulated glasses for the first time in the industry*8. As strong pressure is usually applied to the pillars, opaque material with high strength such as metal is used for the pillars. However, Panasonic has succeeded in developing a vacuum insulated glass with transparent pillars by developing a new 'transparent insulating material with high strength' for the pillars. With the glass where the new material is used for the pillars, users have a noiseless view with subdued presence of pillars more than ever before. Currently, multi-layered/triple glasses are often used for doors of refrigerator/freezer showcases. However, in pursuing to improve insulation property of the glasses with conventional technology, the door will be thicker and heavier. Therefore, 'Glavenir' will contribute to further improve its energy saving performance, solving such issue.
*6 Top class in the vacuum insulated glass market: 0.7 W/（m2・K）for the thermal transmittance of a single vacuum insulated glass with total thickness of approx.
6mm, as of December 12, 2019. This was investigated by Panasonic.
*7 A glass commonly and widely used for windows, etc.
*8 In the vacuum insulated glass market, as of December 12, 2019. This was investigated by Panasonic.