Flexible Graphite Gasket – High Quality Sealing Material

Flexible graphite gasket is also called expanded graphite gasket. It consists of a pure exfoliated flake material and contains no binder or filler.

In addition, the amount of carbon present in the sheet is a key determinant of its flexibility: the higher the percentage of carbon present, the more flexible the sheet. Flexible graphite gasket contains a carbon content of between 95 percent and 99.9 percent. What's more, it has good corrosion, high/low temperature and high pressure resistance performance. All these make it a critical sealing solution for some applications. Such as pipes, valves and pumps.

Available shapes

Special shapes can be customized.

Two black flexible graphite gaskets 01 on the white background.

Flexible graphite gasket 01

Many black flexible graphite gaskets 02 on the white background.

Flexible graphite gasket 02

A black flexible graphite gasket 03 on the white background.

Flexible graphite gasket 03


  • Corrosion resistance. Resistant to a variety of acids, alkalis and salt solutions, organic compounds and heat transfer fluids.
  • High purity. The standard gasket has a purity of 95% to 98% and a nuclear grade purity of 99.9%.
  • High/Low temperature resistance.
  • High strength.
  • High pressure resistance.
  • Good compression resilience.
  • Excellent sealing characteristic.
  • Wear resistance.
  • Thermal conductive
  • Low creep relaxation.
  • Easy fitting.


  • Pipes.
  • Valves.
  • Pumps.
  • Heat exchangers.
  • Condensers.
  • Generators.
  • Air compressors.
  • Exhaust pipes.
  • Refrigerators.
  • Flanges.
A valve with flexible graphite gasket on the background.

Flexible graphite gasket for valve

Flexible graphite gasket is used in the exhaust pipe.

Flexible graphite gasket for exhaust pipe

Common specifications

  • Density: 0.7–1.0 g/cm3.
  • Compressibility (ASTM F36A): 30%.
  • Recovery (ASTM F36A): ≥ 10%.
  • Pressure: 40 bar.
  • Temperature: −240 °C to 550 °C.
  • PH: 0–14.
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