What are the properties of aramid fibers (KlingerSil® e.g. C-4400)?

Aramid fiber gaskets are bonded with NBR (e.g. KlingerSil® C-4400) and free of asbestos. They offer good aging resistance as well as pressure and temperature resistance, with a range of -100 °C to 175 °C and a working pressure of up to 60 bar. Aramid fiber gaskets are resistant to hot steam, hot water, various gases, fuels, lubricants, as well as organic and inorganic acids.

Properties of Aramid Fiber Gaskets


Product Specification Sealing material
Material Aramid fibers, bonded with NBR (KlingerSil® e.g. C-4400), asbestos-free
Color mostly green or yellow
Technical Properties
Operating Temperature -100 °C to 175 °C / -148 °F to 347 °F (higher and lower is possible depending on the medium and application)
Working Pressure up to 60 bar / 870 psi (higher is possible depending on the medium and application)
Physical and Chemical Properties
Physical Good aging resistance, good pressure and temperature resistance
Chemical Resistant to hot steam and hot water, gases, salt solutions, fuels, alcohols, organic and inorganic acids, lubricants, and coolants
Portrait von Dirk Göttgens
Portrait von Dirk Göttgens

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