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Chemical Resistant Gasketing
KLINGERSIL® C-7400
• Synthetic Fiber
• EPDM Binder
• Moderate Caustics and Acids
• Good Oil Swell Characteristics
• Excellent Aging Properties
• Good in Light Duty Steam
Typical values refer to 1/16" material 
unless otherwise specified. 
See graphs for temperature & pressure limits
Creep Relaxation
 ASTM F38B (1/32")
25%
Sealability
 ASTM F37A (1/32") 
<0.30 ml/hr
Gas Permeability
DIN 3535/6 
<0.5 ml/min
Compressibility
 ASTM F36J
7%
Recovery
 ASTM F36J 
50% minimum
Klinger Hot Compression Test
(tested at 3,625-psi gasket
stress)
Thickness Decrease 73°F (23°C) 
9% initial
Thickness Decrease 572°F (300°C)
5% additional
Weight Increase
ASTM F146 after immersion in Fuel B
5h/73°F (23°C) 
15% maximum
Thickness Increase
ASTM F146 after immersion in 
ASTM Oil 1, 5h/300°F (149°C) 
0-15%
ASTM Oil IRM903, 5h/300°F (149°C)
15-30%
ASTM Fuel A, 5h/73°F (23°C)
0-20%
ASTM Fuel B, 5h/73°F (23°C) 
5-20%
Dielectric Strength
ASTM D149-95a
22 kV/mm
ASTM F104 Line Call Out
F712441B4E24K6M5
Leachable Chloride Content
FSA Method (Typical)
200 ppm
Density
 ASTM F1315
94 lb/ft 3 (1.5 g/cc)
Color
(Top/Bottom)
White/Grey
Pressure & Temperature Graphs
(Click here to learn more about graphs)
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