Technical Sheet
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
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Max Temperature: 750°F
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Continuous Max with Steam: 400°F
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Max Pressure: 1450 psi
Properties
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Resistant to Oils, Fuels, Hydrocarbons
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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 |
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
Liquids
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.