Inorganic means that it never lived. The term inorganic applies to any compound that does not contain the element carbon.

Inorganic materials are frequently impregnated into carbon/ graphite seal faces to give them other characteristics such as:

  • Lubricity
  • Strength
  • Density

After the impregnation these carbons are called "filled carbons".

See: Carbon graphite, C011

  • Damage to carbon faces, ST008
  • Manufacturing carbon seal faces, C010
  • Oxidizers that attack carbon, O023
  • Physicals & Specifications, C012
  • Stress relieving, S093



  • On February 16, 2018