Schott D 263®


Highly transmissive BOROSILICATE GLASS with a low level of autofluorescence

D 263® bio is a colorless borosilicate glass with a homogeneous, low intrinsic auto fluorescence across the spectrum. Tight, controlled refractive index tolerances ensure consistent, high optical transmission properties and diagnostic results. It offers great chemical stability and resistance to reagents as used in microarray and diagnostic protocols.

D 263® bio is produced in a SCHOTT-specific down-draw method, which results in non-porous, ultra-flat fire-polished surface quality on both sides at target thicknesses without polishing. The glass is available in round wafer dimensions or custom-cut rectangular substrates which are cleaned, inspected and packaged to meet demanding standards of the biotechnology and semiconductor industries.


  • Very low level of autofluorescence
  • High luminous transmittance
  • Colorless appearance
  • Excellent cosmetic quality
  • Resistant to chemical attacks
  • Impermeable to moisture
  • High material inspection levels ensures minimal defects
  • Precise, continuously inspected geometrical properties
  • Persistence against environmental factors ensures long durability
  • Easy to structure
  • Similarly flexible use as polymers at higher mechanical and chemical stability
  • Easy to cut
  • Wide range of thicknesses available


Chemically toughenable and easy to structure, this glass can used in numerous applications in demand of high optical and chemical qualities such as substrate glass for optical diagnostics, microfluidic components or other consumer and industrial applications. D 263® bio has certified biocompatibility (Cytotoxicity as per DIN EN ISO 10993-5:2009 and Haemocompatibility as per DIN EN ISO 10993-4:2009)

Manufacture Reports and Reference

Schott D 263® Overview
Schott D 263® Data Sheet
Schott D 263® SGS Report