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Gasket made from aramide fibres FJ 2634

FJ2634 is an asbestos-free gasket material. It contains aramide fibers, inorganic fillers and other high-temperature resistant substances which are bonded with high strength and especially gas-tight under increased pressure and increased temperature.

FJ2634 does not contain any physiologically harmful substances or colour pigments.

FJ2634 exhibits high tensile strength plus stress and shearing resistance. The material is ideally suited for sealing gases and fluids, e.g. oils, solvents, fuels, Freons, liquid gases, water/antifreeze mixtures, saline solutions and many other media. It is also suitable for sealing hot water and steam up to approx. 200 °C in stationary applications and with an installation surface pressure of at least 50 N/mm².

Other characteristic properties of the material are excellent temperature resistance, stress resistance under high operating pressure, and ease of handling.


  • for DIN and ANSI flanged joints, apparatus, pumps, fittings and pipelines in industrial plants
  • for fittings with very narrow sealing surfaces, e.g. in gas and hot water units, solar panels, convection radiators and couplings, etc.
  • for sealed joints in IC engines subject to high mechanical and thermal stress (oil filters, intake manifolds, water, fuel & vacuum pumps, etc.)
  • for transmissions, gearboxes, refrigerating & air compressors, etc.

Since FJ2634 is physiologically safe, it is also suitable for use in contact with drinking water & foodstuffs, and for sealing highly pure, pollutant-sensitive products such as paint bases, vitamins, etc.


A graphite coating on one or both sides of the gasket is recommended when used with components that rotate on the gasket during assembly, e.g. in threaded couplings, radiator plugs, etc., as a low friction value is required in these cases.


    (acc. To DIN 3535, part 6 FA)
  • FDA-compliant
    acc. To 21 CFR § 177.2600 (E+F) – suitable for flat gaskets with all types of foodstuffs
  • WRAS
    Certification of gasket materials for use in drinking water (acc. To British Standard BS 6920)
  • VP 401 (HTB)
    Gaskets with higher thermal resistance
  • Fire Safe
    acc. To British Standard BS 6755 
  • BAM
    German Federal Institute for Materials Research and Testing, flanged joints in oxygen-conducting steel pipes up to 100 bar and 80 °C 
  • Grade X
    acc. To BS 7531
  • UVV 61
    “Gases”, AD-B7 (VdTÜV) in conjunction with metal inner eyelet, blowout-proof gasket
  • TA Luft
    High-quality gasket (200 °C for 48 h and 2000 h)
  • Germanischer Lloyd (DNV GL)
    Approval for shipbuilding



DWGW KTW approved
DWGW W-270
USP 26, NF21, 2003 Class VI <87>
USP 26, NF21, 2003 Class VI <88>

Standards & Reccommendations

TA Luft (VDI 2240)
API 607
BAM (oxygen service)


DNV-GL (Germanischer Lloyd)

Quality (QA) & Pre-qualification

ISO 9001:2008
JQS Achilles (Oil & Gas)
Sellihca (Utillities)