Characteristic & main applications

Universal high-pressure gasket material suitable for use in many branches of the chemical, food and the water supply industry. Very high standard of performance.

Resistant to oils, water, steam, gases, salt solutions, fuels, alcohols, organic and inorganic acids, hydrocarbons, lubricants and refrigerants.

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Aramid fibres bonded with NBR.

pT diagrams

The Klinger pT diagram provides guidelines for determining the suitability of a particular gasket material for a specific application based on the operating temperature and pressure only. Always refer to the chemical resistance of the gasket to the fluid.

1. In area one, the gasket material is normally suitable subject to chemical compatibility.
2. In area two, the gasket materials may be suitable but a technical evaluation is recommended.
3. In area three, do not install the gasket without a technical evaluation.

Technical Data – Typical values for 2mm thickness

Compressibility ASTM F 36 J 11%
Recovery ASTM F 36 J min. 55%
Stress relaxation DIN 52913
50 MPa, 16 h/ 175°C 32MPa
50 MPa, 16 h/ 300°C 25MPa
Stress relaxation BS 7531
40 MPa, 16 h/ 300°C
Klinger cold/hot compression, 50 MPa
thickness decrease at 23°C 10%
thickness decrease at 300°C 20%
Tightness according DIN 3535/6 0.02mg/sm
Thickness increase ASTM F 146
oil JRM 903: 5 h/150°C 3%
fuel B: 5 h/23°C 5%
Density 1,60g/cm3

Meet the technical requirements of BS 7531:2006 Grade AY

Dimensions of the standard sheets

Sizes: 1000 x 1500 mm, 2000 x 1500 mm.

Thicknesses: 0.5 mm, 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm; other thicknesses and sizes on request.

Tolerances: Thickness acc. DIN 28091-1, length ± 50 mm, width ± 50 mm.


KLINGERSIL® gasket materials are generally furnished with surfaces of low adhesion. On request, graphite facings and other surface finishes on one or both sides are also available.

A non coloured version for food application with technically identical values is named KLINGERSIL® C-4400L.

Function and durability

The performance and service life of KLINGER gaskets depend in large measure on proper storage and fitting, factors beyond the manufacture’s control. We can, however, vouch for the excellent quality of our products. With this in mind, please also observe our installation instructions.


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