High Thermal Stability: Quartz tubing exhibits excellent thermal stability, with the ability to withstand high temperatures generated during the solar cell manufacturing process. This thermal resistance makes it an ideal material for encapsulating photovoltaic materials and protecting them from thermal stress SILICA sio2 : 99.92 ALUMINA aio2 : 0.005 IRON AS Fe : 0.006 CALCIUM AS CA: 0.004 LITHIUM AS LI: BDL DL1 SODIUM: 0.003 POTASSIUM : 0.002 TITANIUM AS Ti: