The traditional vacuum insulation method is to form a vacuum in the hollow insulation layer to break the interaction between inside and outside air, so as to achieve the effect of heat insulation and thermal insulation. By adding a copper layer into the vacuum, the thermal infrared rays can be reflected more effectively, thus making the thermal insulation and insulation effect more obvious and long-lasting. The copper foil for vacuum insulation of CIVEN METAL is a special foil for this purpose. Since the copper foil material is relatively thin, it basically does not affect the thickness of the original vacuum layer, plus the copper foil material of CIVEN METAL has the characteristics of high purity, good surface finish, excellent flexibility, high elongation rate and good overall consistency, etc. It is the ideal product for vacuum insulation material.Copper Foil High-precision RA Copper Foil [STD]Standard ED Copper Foil *Note: All the above products can be found in other categories of our website, and customers can choose according to the actual application requirements. If you need a professional guide, please contact with us.high purity, good surface finish, excellent flexibility, high elongation rate and good overall consistency, etc.