Finished products made of block material

As one of the most valuable materials for industrial applications, natural quartz glass has a number of unique properties. It has a nominal purity > 99.99 weight per cent SiO2. Quartz glass has high temperature stability as well as displaying outstanding transmittance values in the UV and IR ranges.

Fields of application

  • Chemical industry
  • Laser industry
  • Sight glasses
  • Industry and research
  • Semiconductor industry

Main properties

  • Outstanding transmittance of UV to IR
  • Temperature stability up to 1050°C (briefly up to 1200°C)
  • Low coefficient of expansion
  • Good compressive strength
  • Very high purity
  • Low OH content (< 5 ppm)

Possible surface treatments

  • Grinding
  • Lapping
  • Mechanical polishing
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