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KLINGERSIL® C-4400

Universal gasket material for safe and reliable sealing

KLINGERSIL C-4400 is a universal material for a wide range of applications. This material is resistant to oils, water, steam, gases, salt solutions, fuels, alcohols, moderate organic and inorganic acids, hydrocarbons, lubricants, and refrigerants.

This material is manufactured with aramid fiber reinforced with a nitrile binder.

Klingersil C-4400

 

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

Creep relaxation ASTM F38B (1/32") 20 %
Sealability ASTM F37A (1/32") < 0.3 ml/hr
Gas Permeability DIN 3535/6 < 0.5 ml/min
Compressibility ASTM F36J 8 - 14 %
Recovery ASTM F36J 50 % minimum
KLINGER Hot Compression Test
Thickness Decrease 73°F (23°C)
Thickness Decrease 572°F (23°C)

14 % initial
20 % additional
Thickness Increase ASTM F146 after immersion in
ASTM Oil IRM 903, 5h/300°F (149°C)
ASTM Fuel B, 5h/73°F (23°C)

0 - 5 %
0 - 10 %
Dielectric Strength ASTM D149-95a 21.6 kV/mm
Density ASTM F1315 100 lb/ft ³ (1.6 g/cc ³)
Color Green

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":
 
LIQUIDS
C-4400 Liquid
GASES & STEAM
C-4400 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 Thermoseal Inc.'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.