C-4401SS - Synthetic Fiber Sheets With Nitrile Binder

Technical Sheet

APG's C-4401SS - Synthetic Fibers Sheets with Nitrile Binder is a universal, general purpose gasket material that offers excellent sealability and chemical resistance along with good creep relaxation characteristics.

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

4401ssg

 

Performance & Properties

Performance Features
  • Max Temperature: 750°F

  • Continuous Max with Steam: 450°F

  • Max Pressure: 1400 psi

  • Wire Reinforcement 

  • Improved Stress Relaxation

Performance & Properties

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 7 - 17 %
Recovery ASTM F36J 50 % minimum
KLINGER Hot Compression Test  
1 Thickness Decrease 73°F (23°C) 1 15 % initial
2 Thickness Decrease 572° F (300°C) 2 9 % additional
Weight increase ASTM F146 after immersion in  
Fuel B, 5h/73°F (23°C) 15 % maximum
Thickness Increase ASTM F146 after immersion in  
1 ASTM Oil IRM 901, 5h/300°F (149°C)  1 0 - 5 % 
2 ASTM Oil IRM 903, 5h/300°F (149°C) 2 5 - 10 %
3 ASTM Fuel A, 5h/73°F (23°C) 3 5 - 10 %
4 ASTM Fuel B, 5h/73°F (23°C) 4 5 - 10 %
Dielectric Strength ASTM D149-95a 14 kV/mm
Density ASTM F1315 112 lb/ft ³ (1.8 g/cc ³)
Color Green

 

DOWNLOAD SPEC SHEET

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

KLINGERSIL C-4401SS Steam

Liquids

KLINGERSIL C-4401SS 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.