0211 – Alkali reduced borosilicate thin glass

Special Properties

• Fire polished smooth surfaces
• Good surface quality
• Tight thickness tolerance
• Reduced soda content

Typical Applications

• Coverslips
• Microscope slides
• Liquid crystal displays (LCD)
• Thin glass substrates
• Basis for photo-resistors
• Thin- and thick film substrates
• Touch Panels
• General thin glass applications

Related glass types

• D 263 T (ultra-thin borosilicate glass)
• AF 32^® eco (alkali-free alumina-borosilicate thin glass)
• AS 87 eco (ultra-thin aluminosilicate glass)
• MEMpax^® (thin borosilicate glass)
• Selected White Float Glass (soda-lime-thin glass)

CORNING 0211 is a drawn alkali reduced borosilicate thin glass glass made by a process that engenders a nearly flawless fire-polished surface. It has a minimal thickness tolerance and excellent uniformity.

Corning's 0211 micro-sheet glass is available from stock in various standard thicknesses. Although 0211 thin glass contains alkali, it has a soda content of only about 50% of ordinary soda-lime glasses. 0211 is often the base material for specialty microscope slides or coverslips.

 

To request windows or substrates made of 0211 with specific dimensions, please click the button below.

 

Request for Quotation

 

Note: 0211 borosilicate microsheets were discontinued by CORNING many years ago. We still have some of that glass in stock. However, you might want to base your new developments on other glass sheet materials. For high-quality thin and ultra-thin glass sheets, please visit our D 263 T datasheet.

 

Specifications

Transmission of CORNING 0211

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Standard thickness

(Please click on glass thickness to request a quote)

Thickness (mm)	Tolerance
0.30	±0.05	✔

Optical Properties

• Refractive Index: n_d = 1.523 (588 nm)
• Transmission at 0.2 mm thickness:
  • at 350-2500 nm : >90%
  • at 300 nm : ca. 12%
  • at 310 nm : ca. 45%
  • at 320 nm : ca. 70%
  • at 4700 nm: ca. 50%

Mechanical Properties

• Density: 2.53 g/cm³ (20 °C)
• Young's Modulus: E = 7.59 × 10³ Kg/mm²

Thermal Properties

• Thermal coefficient of expansion (0–300 °C):
  73.8 × 10^-7/K

Electrical Properties

• Dielectric constant 6.7 (20 °C / 1 Mhz)
• Loss factor 0.46% (20 °C / 1 Mhz)

 

All data and specifications given are average guide values and are not guaranteed. Moreover, please consider the “Notes on Specifications”.

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Last update: November 18, 2025