Thermoseal Klingersil C-4300 Compressed Non-Asbestos gasket sheet of aramid fibers with a nitrile binder (Black or White Sheet)

Thermoseal Klingersil C-4300 is a universal high-pressure gasket material that is resistant to hot water, steam, oil, hydrocarbons and many other chemicals which makes it suitable for many different media.

Compatible With:

  • Hot Water
  • Steam
  • Oils
  • Hydrocarbons
  • Many other chemicals







KLINGERSIL C-4300 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 Liquids

700°F *

Max Peak Temp with Gases & Steam

390°F *

Max Operating Pressure with Liquids

1,190 PSI *

Max Operating Pressure with Gases & Steam

1,175 PSI *


*under suitable conditions



ASTM F104 Line Call out: 





See the data sheet PDF in this folder


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