Sheet mica

Mica discs in longitudinal shape with square ends are protective muscovite-mica discs designed for borosilicate sight glass rods (DIN 7081), providing thermal and chemical protection while preserving optical transparency.

Product details

• Protective layer positioned between the process medium and borosilicate sight glass to prevent damage from erosive or corrosive media and from thermal shocks.
• Made of natural muscovite mica; offers high temperature and chemical resistance while maintaining sufficient optical transparency for sight glass applications.
• Designed for use with MAXOS® borosilicate glass rods according to DIN 7081; in combination with these rods, operation up to 320 °C is possible.

Dimensions / available sizes

• Elongated Mica Discs 30 mm — Material thickness S: 0.15 - 0.20 mm — Quality: V4
  • 115 x 30 mm
  • 140 x 30 mm
  • 165 x 30 mm
  • 190 x 30 mm
  • 220 x 30 mm
  • 250 x 30 mm
  • 280 x 30 mm
  • 320 x 30 mm
  • 340 x 30 mm
  • 370 x 30 mm
  • 420 x 30 mm
• Elongated Mica Discs 34 mm — Material thickness S: 0.15 - 0.20 mm — Quality: V4
  • 115 x 34 mm
  • 140 x 34 mm
  • 165 x 34 mm
  • 190 x 34 mm
  • 220 x 34 mm
  • 250 x 34 mm
  • 280 x 34 mm
  • 320 x 34 mm
  • 340 x 34 mm
  • 370 x 34 mm
  • 420 x 34 mm
• Special dimensions possible.

Applications / Quick overview

• Heat resistant (mica material rated up to 500 °C).
• Suitable for liquid media.
• Suitable for gaseous media and overheated steam applications.
• Protection against aggressive media to extend sight glass lifetime.
• Available in lengths up to 420 mm (standard list); custom designs and lengths up to 500 mm possible.

Characteristics / technical specifications

• Material: natural muscovite mica (muscovite).
• Intended for use with: borosilicate sight glass rods (DIN 7081), e.g. MAXOS® rods.
• Operating temperature (with MAXOS® rods): up to 320 °C; mica material heat resistance: up to 500 °C.
• Thickness (S): 0.15 - 0.20 mm.
• Quality designation: V4.
• Available widths: 30 mm and 34 mm.
• Standard lengths listed: 115 mm to 420 mm; custom lengths and special dimensions available (up to 500 mm noted).
• Function: thermal and chemical protection of borosilicate sight glass with minimal impairment of optical transparency.