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Carbon Fiber Gasketing
KLINGERSIL® C-4500
• Carbon Fiber
• Nitrile Binder
• High Temperature
• High Internal Pressure
• Good Steam Sheet
• Suitable for a Wide Range of Chemical Applications
Typical values refer to 1/16" material 
unless otherwise specified. 
See graphs for temperature & pressure limits
Creep Relaxation
 ASTM F38B (1/32")
20%
Sealability
 ASTM F37A (1/32") 
<0.30 ml/hr
Gas Permeability
DIN 3535/6 
<1.0 ml/min
Compressibility
 ASTM F36J
12%
Recovery
 ASTM F36J 
60% minimum
Klinger Hot Compression Test
Thickness Decrease 73°F (23°C) 
10% initial
Thickness Decrease 572°F (300°C)
15% additional
Weight Increase
ASTM F146 after immersion in Fuel B
5h/73°F (23°C) 
10% maximum
Thickness Increase
ASTM F146 after immersion in 
ASTM Oil 1, 5h/300°F (149°C) 
0-5%
ASTM Oil IRM903, 5h/300°F (149°C)
0-3%
ASTM Fuel A, 5h/73°F (23°C)
0-5%
ASTM Fuel B, 5h/73°F (23°C) 
0-5%
Dielectric Strength
ASTM D149-95a
1.5 kV/mm
ASTM F104 Line Call Out
F712122B3E11K6M5
Leachable Chloride Content
FSA Method (Typical)
200 ppm
Density
 ASTM F1315
87 lb/ft 3 (1.4 g/cc)
Color
(Top/Bottom)
Black
Pressure & Temperature Graphs
(Click here to learn more about graphs)
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