Insulated glass is made of two or more pieces of glass glazing sheets and use sealant gumming and aluminum spacers which was filled with desiccant together. Insulated glass with the perimeter of the spacer that gets in contact with the glass is properly sealed with primary and secondary sealants to ensure it with air/argon tight.Insulated glass is composed of two or more pieces of glass from the effective support evenly separated and sealed around the seal, so that the formation of glass between the layers of dry gas composite products.