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Most Popular Disk Inserts

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These disk inserts are designed for use with our ChangeDisk RDE and RRDE tips.  Our most popular insert materials include glassy carbon, platinum, and gold.  If you require a disk insert from another material or with custom dimensions, please contact us directly for more information.  Standard disk inserts have a 5.0 mm OD and are 4.0 mm thick; however, other dimensions are also available (click here to see our Disk Insert Mechanical Drawing).

  • Standard disk OD = 5.0 mm
  • Standard disk length = 4.0 mm

See "Description" tab below for additional precautions and information.

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# Description Price in USD
Advanced Carbon Material Disk Inserts
AFED050P040GC

Glassy Carbon Disk Insert
5.0 mm OD x 4.0 mm thick, mirror polished

Please read our glassy carbon disclaimer!

AFED050P040GE

Edge-Plane Pyrolytic Graphite Disk Insert
pyrolytic graphite disk (3.81 mm OD x 4.0 mm thick) encapsulated in epoxy (5.0 mm OD)
epoxy is incompatible with most non-aqueous solvents

Please read our pyrolytic graphite disclaimer!

AFED050P040GB

Basal-Plane Pyrolytic Graphite Disk Insert
pyrolytic graphite disk (3.81 mm OD x 4.0 mm thick) encapsulated in epoxy (5.0 mm OD)
epoxy is incompatible with most non-aqueous solvents

Please read our pyrolytic graphite disclaimer!

Precious Metal Disk Inserts
AFED050P040PT

Platinum Disk Insert
5.0 mm OD x 4.0 mm thick, mirror polished

AFED050P040AU

Gold Disk Insert
5.0 mm OD x 4.0 mm thick, mirror polished

AFED050P040AG

Silver Disk Insert
5.0 mm OD x 4.0 mm thick, mirror polished

AFED050P040PD

Palladium Disk Insert
5.0 mm OD x 4.0 mm thick, mirror polished

Other Metal Disk Inserts
Other Materials

Click here to find disk inserts fabricated from other materials.

Thin Disk Inserts for Older E4 Tips

Glassy Carbon Thin Disk Insert
5.0 mm OD x 3.0 mm thick, mirror polished

Please read our glassy carbon disclaimer!

Platinum Thin Disk Insert
5.0 mm OD x 3.0 mm thick, mirror polished

Gold Thin Disk Insert
5.0 mm OD x 3.0 mm thick, mirror polished

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https://pineresearch.com/shop/products/electrodes/disk-inserts/most-common