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Glass coverslips

Our premium quality coverslips made from optically clear and specially formulated borosilicate glass. The main application is as microscopy cover glass with other applications, including use as a thin film substrates and coating test glass.

Available in thickness #1 (0.13-0.17) in three popular sizes: 18 x 18mm, 22 x 22mm and 24 x 40mm. Supplied in single packs or boxes of ten packs (sealed in barrier foil).

 

Product # Type Thickness Dimensions Slide material Precleaned Packaging
51-002218-1 Square #1 0.13-0.17mm 18 x 18mm Borosilicate glass yes Pkt/100
51-002218-10 Square #1 0.13-0.17mm 18 x 18mm Borosilicate glass yes Box/1000
51-002222-1 Square #1 0.13-0.17mm 22 x 22mm Borosilicate glass yes Pkt/100
51-002222-10 Square #1 0.13-0.17mm 22 x 22mm Borosilicate glass yes Box/1000
51-002224-1 Rectangle #1 0.13-0.17mm 24 x 40mm Borosilicate glass yes Box/1 ounce (~86)
51-002224-10 Rectangle #1 0.13-0.17mm 24 x 40mm Borosilicate glass yes Box/10 ounce (~860)

 

Parameter

Value/unit

Light transmission, total solar

92.5%

Refractive index

1.5255 at 546.07nm

Density

2.51 g/cm3

Hardness

6 Mohs scale

Coefficient of expansion

3.3 x 10-6 /°C

Poisson’s ratio

0.208

Strain Point

529°C

Annealing temperature

557°C

Softening temperature

736°C

Liquidus temperature

820°C

Compound

Wt%

SiO2

64.1

B2O

8.4

Al2O3

4.2

Na2O

6.4

K2O

6.9

ZnO

5.9

TiO2

4.0

Sb2O3

0.1

Ordering information: