C-4400 - Aramid Fiber Sheets With Nitrile Binder

Technical Sheet

4400g

APG's 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.

Performance & Properties

Performance

  • Max Temperature: 750°F

  • Continuous Max with Steam: 400°F

  • Max Pressure: 1450 psi

Properties

  • Resistant to Oils, Fuels, Hydrocarbons

  • Good Creep Resistance

Product Specifications

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  
1 Thickness Decrease 73°F (23°C) 1 14 % initial
2 Thickness Decrease 572° F (300°C) 2 20 % additional
Thickness Increase ASTM F146 after immersion in  
1 ASTM Oil IRM 903, 5h/300°F (149°C)  1 0 - 5 % 
2 ASTM Fuel B, 5h/73°F (23°C) 2 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

 

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Pressure/Temperature Graphs

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":

Gases & Steam

4400,-4401G&S

Liquids

4400,-4401-liquid

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.

In area 3 do not install gaskets in these applications without first contacting APG for technical support service.