300-500 high temperature resistant glass

orosilicate float glass is produced by the technology of float glass production. Main ingredients of this float glass are sodium oxide Na2O, boron oxide(B2O3),silicon dioxide SiO2.Of these ingredients, boron and silicon have high content. The feature of this glass is that it has small thermal expansion coefficient of 3.3,good thermal stability ,chemical durability and electrical property. Moreover, this glass could use in high temperature and has strong hardness, and have the function of uviores