PRODUCT DATA

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

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

By Post

Gee Graphite Ltd.
Havelock Street
Ravensthorpe
Dewsbury
West Yorkshire
WF13 3LU

Contact

  • t. +44 (0) 1924 480011
  • f. +44 (0) 1924 480017
  • e. enquiries@geegraphite.com
  • w. www.geegraphite.com