Felix Glass | Quartz Glass Knowledge Center

JGS1, JGS2 and JGS3 are standard grades for optical quartz glass. This guide compares their spectral transmittance, OH content and core features, and provides professional selection rules for UV, visible and infrared optical systems.

Learn the essential differences between fused silica and fused quartz in raw material sources, purity, OH content, defects and optical performance. Get professional selection advice for semiconductor, deep UV optics and general high-temperature industrial applications.

Compare quartz glass and borosilicate glass on composition, temperature resistance, UV transmittance, chemical stability and cost. Follow professional selection guidance for laboratory, industrial and optical applications.

Quartz glass, also known as fused quartz, is a high-performance industrial material made of ultra-high purity silicon dioxide (SiO₂). This guide covers its composition, core properties, manufacturing process, advantages, and applications in semiconductors, optics, UV systems and laboratories.