Clark Borosilicate Thin Wall with Filament

Clark Borosilicate Thin Wall with Filament

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
  • Easy filling due to filament
  • Available in outside diameters from 1.0 to 2.0mm
  • Exceptionally low tip impedance (less than 50 MΩ)
  • Excellent for patch clamp pipettes and microinjection needles
  • Ratio of outside to inside diameters preserved up to the pipette tip after pulling
  • Economical

Item# Description U.S. List Price Quantity
30-0040 Borosilicate Thin Wall with Filament, 1.0 mm OD, 0.78 mm ID, 75 mm L , Pkg. of 500
30-0038 Borosilicate Thin Wall with Filament, 1.0 mm OD, 0.78 mm ID, 100 mm L , Pkg. of 500
30-0039 Borosilicate Thin Wall with Filament, 1.0 mm OD, 0.78 mm ID, 150 mm L , Pkg. of 500
30-0052 Borosilicate Thin Wall with Filament, 1.2 mm OD, 0.94 mm ID, 75 mm L , Pkg. of 350
30-0050 Borosilicate Thin Wall with Filament, 1.2 mm OD, 0.94 mm ID, 100 mm L , Pkg. of 350
30-0068 Borosilicate Thin Wall with Filament, 1.5 mm OD, 1.17 mm ID, 75 mm L , Pkg. of 225
30-0066 Borosilicate Thin Wall with Filament, 1.5 mm OD, 1.17 mm ID, 100 mm L , Pkg. of 225
30-0067 Borosilicate Thin Wall with Filament, 1.5 mm OD, 1.17 mm ID, 150 mm L , Pkg. of 225
30-0128 Borosilicate Thin Wall with Filament, 2.0 mm OD, 1.56 mm ID, 75 mm L , Pkg. of 125
30-0078 Borosilicate Thin Wall with Filament, 2.0 mm OD, 1.56 mm ID, 150 mm L , Pkg. of 125
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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.

Thin wall wall Clark borosilicate capillaries with filament 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 Const 4.7
Tolerance
(OD)
± 0.05 mm - 0.10 mm, depending on OD



OD mmID mmWall Thickness (mm) Tolerance (mm)LengthQty/PkgModelOrder #
1.0 0.78 0.11   ±0.05 75 mm 500 GC100TF-7.5 30-0040
100 mm 500 GC100TF-10 30-0038
150 mm 500 GC100TF-15 30-0039
1.2 0.94 0.13   ±0.05 75 mm 350 GC120TF-7.5 30-0052
100 mm 350 GC120TF-10 30-0050
1.5 1.17 0.17    ±0.05 75 mm 225 GC150TF-7.5 30-0068
100 mm 225 GC150TF-10 30-0066
150 mm 225 GC150TF-15 30-0067
2.0 1.56 0.22   ±0.10 75 mm 125 GC200TF-7.5 30-0128
150 mm 125 GC200TF-15 30-0078