Thermoseal Klingersil C-4400 Compressed Non-Asbestos gasket sheet is manufactured with aramid fiber reinforced with a nitrile binder . (Green Sheet)

Thermoseal Klingersil C-4400 is a universal material for a wide range of applications. This material is resistant to oils, water, steam, gases, salt solutions, fuels, alcohols, moderate organic and inorganic acids, hydrocarbons, lubricants, and refrigerants.




  • Oil resistant

Compatible With:

  • Water
  • Steam
  • Oils
  • Gasses
  • Fuels
  • Alcohols
  • Moderate organic and inorganic acids
  • Hydrocarbons
  • Lubricants
  • Refrigerants
  • Salt solutions


KLINGERSIL C-4400 Gasket Sheets are available in these sizes:

1/64”X 60”X 60”
1/32”X 60”X 60”
1/16”X 60”X 60”
3/32”X 60”X 60”
1/8”X 60”X 60”

Note: Other thicknesses and sheet sizes may be available by special order.

Specifications (for 1/16” thick sheet):

Max Peak Temp with Liquids750°F*
Max Peak Temp with Gases & Steam450°F*
Max Operating Pressure with Liquids1,400 PSI*
Max Operating Pressure with Gases & Steam1,400 PSI*

*under suitable conditions