Quartz plate has its unique optical properties. It can pass through far ultraviolet light, 

which is the best of all ultraviolet-penetrating materials. It can also pass through visible 

light and near-infrared spectrum. Quartz glass plates have the properties of high 

temperature resistance, small thermal expansion coefficient, goodchemical stability, 

uniformity and no bubbles, no fringes. it is an essential optical material in a variety of 

harsh situations with high stability of the optical coefficient

High temperature resistance: The softening point temperature of quartz glass is about 

1730℃, which can be used for a long time at 1100℃, and the highest using temperature for 

a short time can reach 1450℃. Corrosion resistance: In addition to hydrofluoric acid, quartz 

glass almost does not react with other acid substances, its acid resistance is 30 times that 

of ceramics, 150 times that of stainless steel, especially the chemical stability at high 

temperature is incomparable to any other materials.