Clark Borosilicate Standard Wall

Clark Borosilicate Standard Wall

The properties of borosilicate glass make it the most popular material among researchers for the fabrication of electrodes and micro-pipettes.

  • High quality borosilicate glass
  • Five diameters available from 1.0 to 3.0 mm
  • Economical
  • Ratio of outside to inside diameters preserved up to the pipette tip after pulling

Item# Description U.S. List Price Quantity
30-0018 Borosilicate Standard Wall without Filament, 1.0 mm OD, 0.58 mm ID, 75 mm L , Pkg. of 500
30-0016 Borosilicate Standard Wall without Filament, 1.0 mm OD, 0.58 mm ID, 100 mm L , Pkg. of 500
30-0017 Borosilicate Standard Wall without Filament, 1.0 mm OD, 0.58 mm ID, 150 mm L , Pkg. of 500
30-0043 Borosilicate Standard Wall without Filament, 1.2 mm OD, 0.69 mm ID, 75 mm L , Pkg. of 350
30-0042 Borosilicate Standard Wall without Filament, 1.2 mm OD, 0.69 mm ID, 100 mm L , Pkg. of 350
30-0041 Borosilicate Standard Wall without Filament, 1.2 mm OD, 0.69 mm ID, 150 mm L , Pkg. of 350
30-0056 Borosilicate Standard Wall without Filament, 1.5 mm OD, 0.86 mm ID, 75 mm L , Pkg. of 225
30-0053 Borosilicate Standard Wall without Filament, 1.5 mm OD, 0.86 mm ID, 100 mm L , Pkg. of 225
30-0054 Borosilicate Standard Wall without Filament, 1.5 mm OD, 0.86 mm ID, 110 mm L , Pkg. of 225
30-0055 Borosilicate Standard Wall without Filament, 1.5 mm OD, 0.86 mm ID, 150 mm L , Pkg. of 225
30-0073 Borosilicate Standard Wall without Filament, 2.0 mm OD, 1.16 mm ID, 75 mm L , Pkg. of 125
30-0070 Borosilicate Standard Wall without Filament, 2.0 mm OD, 1.16 mm ID, 100 mm L , Pkg. of 125
30-0071 Borosilicate Standard Wall without Filament, 2.0 mm OD, 1.16 mm ID, 150 mm L , Pkg. of 125
30-0127 Borosilicate Standard Wall without Filament, 3.0 mm OD, 1.62 mm ID, 75 mm L , Pkg. of 55
30-0080 Borosilicate Standard Wall without Filament, 3.0 mm OD, 1.62 mm ID, 100 mm L , Pkg. of 55
30-0081 Borosilicate Standard Wall without Filament, 3.0 mm OD, 1.62 mm ID, 150 mm L , Pkg. of 55
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The low softening temperature of this glass combined with its mechanical strength, chemical resistance, high electrical resistivity, and ability to withstand thermal stress make these capillaries the most widely used in the world. Standard wall Clark borosilicate capillaries are offered in a variety of outer and inner diameters all without an inner filament.

Micropipettes and microelectrodes manufactured from Clark glass are used primarily in intracellular and extracellular research. The end user can also manufacture their own microelectrodes and micropipettes using standard pipette pulling and microforge techniques.

Specifications
Composition 80.9% SiO2, 12.9% B2O3, 4.4% Na2O, 1.8% Al2O3
Softening Temp 815°C
Dielectric Constant 4.7
Tolerance (OD) ±0.05 - 0.10 mm, depending on OD



OD mmID mmWall Thickness mmTolerance mmLengthQty/PkgModelOrder #
1.0 0.58 0.21 ± 0.05 75 mm 500 GC100-7.5 30-0018
100 mm 500 GC100-10 30-0016
150 mm 500 GC100-15 30-0017
1.2 0.69 0.255 ± 0.05 75 mm 350 GC120-7.5 30-0043
100 mm 350 GC120-10 30-0042
150 mm 350 GC120-15 30-0041
1.5 0.86 0.32 ± 0.05 75 mm 225 GC150-7.5 30-0056
110 mm 225 GC150-11 30-0054
100 mm 225 GC150-10 30-0053
150 mm 125 GC150-15 30-0055
2.0 1.16 0.42 ± 0.1 75 mm 125 GC200-7.5 30-0073
100 mm 125 GC200-10 30-0070
150 mm 125 GC200-15 30-0071
3.0 1.62 1.38 ± 0.1 75 mm 55 GC300-7.5 30-0127
100 mm 55 GC300-10 30-0080
150 mm 55 GC300-15 30-0081