| Tosoh Fused Quartz
Quartz Materials
The
Tosoh Quartz Group is a global supplier of natural and synthetic fused
quartz and fused silica, commonly referred to as Quartz. Tosoh
Corporation, Tosoh SGM Corporation and Tosoh SGM USA, Inc. supply
a wide variety of different shapes and sizes. The main N grade is
excelling in its low bubble content, while the OP grade opaque
(non-transparent) quartz material is recognized as unique in its field.
| Materials |
Description |
| N |
Fused from the
internationally recognized lOTA powder with oxy-hydrogen flames,
resulting in low bubble content. A high-purity "NP" grade and a
window-specific "OZ" grade are also available. |
| OP |
Fused opaque quartz has
excellent IR heat blocking characteristics. A tight distribution of
very small bubbles produces a dense pure-white opaque material and
subsequently excellent achievable surface finishes. OP fused from a
higher-purity raw material is also available. |
| Synthetic |
A high-grade synthetic
silica "ES" grade with virtually no bubbles or inclusions, extreme
high-purity, and excellent ultraviolet transmission. The "ED" grade
manufactured by VAD process and a low-OH type variation called "ED-C"
are also available. | | | 
