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Universal gasket material for a wide range of applications

KLINGERSIL® C-4324 is a universal gasket material for a wide range of applications and is a good general-purpose material suitable for use in liquids and steam at lower pressures and temperatures.

The compressed fiber gasket material is manufactured with a combination of synthetic high-performance fibers reinforced with a nitrile binder.
Klingersil C-4324


Typical Values Refer to 1/16" Thick Material Unless Noted

Creep relaxation ASTM F38B (1/32") 25 %
Sealability ASTM F37A (1/32") < 0.5 ml/hr
Gas Permeability DIN 3535/6 < 0.5 ml/min
Compressibility ASTM F36J 7 - 15 %
Recovery ASTM F36J 50 % minimum
KLINGER Hot Compression Test
Thickness Decrease 73°F (23°C)
Thickness Decrease 572°F (23°C)

12 % initial
20 % additional
Weight increase ASTM F146 after immersion in
Fuel B, 5h/73°F (23°C)

12 % maximum
Thickness Increase ASTM F146 after immersion in
ASTM Oil IRM 901, 5h/300°F (149°C)
ASTM Oil IRM 903, 5h/300°F (149°C)
ASTM Fuel A, 5h/73°F (23°C)
ASTM Fuel B, 5h/73°F (23°C)

0 - 5 %
0 - 5 %
0 - 5 %
0 - 7 %
Dielectric Strength ASTM D149-95a 13 kV/mm
Density ASTM F1315 112 lb/ft ³ (1.8 g/cc ³)
Leachable Chloride Content FSA Method 250 ppm
ASTM F104 Line Call Out F712132B4E32K6M4
Color Green/Grey


The pressure/temperature graphs shown are the most current method of determining the suitability of a gasket material in a known environment. However, chemical compatibility must also be considered.

pT diagram for thickness 1/16":
C-4324 Liquid
C-4324 Gasses and Steam
In area 1 the gasket material is suitable using common installment practices subject to chemical compatibility

In area 2 appropriate measures are necessary for installation of the gasket to ensure maximum performance. Please call or refer to KLINGERexpert for assistance.

In area 3 do not install gaskets in these applications without first referring to KLINGERexpert or contacting KLINGER Thermoseal's technical support service.
The ability of a gasket to make and maintain a seal depends not only on the style and quality of the gasket material, but also on medium being sealed, the flange design, the amount of pressure applied to the gasket by the bolts and how the gasket is assembled onto the flanges and tightened. These factors are beyond the manufacturer's control. Please take note of our installation manual in TECHNICAL RESOURCES.