... around with compound sealant. Normally, the spacers width of insulated glass is 6mm,9mm,12mm,16mm, ect.Feature1.Lower U ... to ensure the good seal performance.3.Sound isolation. Insulated glass can lower the noise, especially when filled with inert ... 180*300mmThickness of aluminium spacers: 6mm, 9mm, 12mm, 16mmApplicationBuilding, window and door, high grade curtain wall, lighting, skylight, elevated ...