Geegraf Graphite Foils

Geegraf Graphite Foils

Geegraf flexible graphite foil, is a homogenous high purity graphite, containing no binders or adhesives providing a resilient and compressible sealing material which exhibits excellent fluid sealing performance for critical high temperature applications, typical in Petrochemical, Refining and Power Generation industries. Geegraf Foils are available in a wide range of grades which include Ultra High Purity, Oxidation Resistant and Corrosion Inhibited grades.

In Electronic applications graphite foils can be used as a dry alternative to thermal compounds providing low thermal resistance and high electrical conductivity. Suitable as a parting media or masking substrate.

Geegraf foils are available with an adhesive backing on one side, which can significantly improve the thermal resistance. A wide range of die-cut and water-jet cut shapes & components are manufactured to customer specifications on request.

• Exfoliated and calendared flexible graphite foil
• Standard purity >99% carbon
• Homogeneous foils in thickness range 0.2mm to 2.0mm
• Density of 1.0g/cc • 1300mm and 1000mm wide rolls
• Special grades available include: Ultra High Purity / Oxidation Resistant / Corrosion Resistant

Technical Data

• Temperature Range: -200 to +2800˚C in inert or reducing conditions,  -200 to +500˚C in oxidising conditions
• Tensile Strength: 5.2Mpa
• Leachable Chloride and Flouride: 50ppm maximum
• Compressibility: 47%
• Recovery: 15%
• Electrical Resistivity: 900x10(-6)ohm cm parallel to surface 250,000x10¯(6) ohm cm perpendicular to surface
• Thermal Conductivity:
120 kcal/m. Hr. ˚C. Parallel to surface 4 kcal/m. Hr. ˚C. Perpendicular to surface • Coefficient of Thermal Expansion: 2 x 10(-6)/ ˚C parallel to surface

Documents to download

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Production Methods

We have four divisions of Gee Graphite to cater for your specific requirements

Gee Graphite Website Gee Valve Seals Website Live Loading Website Waterjet Cutting

By Post

Gee Graphite Ltd.
Havelock Street
West Yorkshire
WF13 3LU


  • t. +44 (0) 1924 480011
  • f. +44 (0) 1924 480017
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