KLINGERSIL® C-4401

• Synthetic Fiber
• Nitrile Binder
• Excellent Sealability
• Excellent Chemical Resistance
• Good Creep Relaxation
• General Purpose Sheet

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")

<0.25 ml/hr

Gas Permeability DIN 3535/6

<0.5 ml/min

Compressibility ASTM F36J

7%

Recovery ASTM F36J

50% minimum

Klinger Hot Compression Test

Thickness Decrease 73°F (23°C)

10.5% initial

Thickness Decrease 572°F (300°C)

17% 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)

0-5%

ASTM Fuel A, 5h/73°F (23°C)

0-5%

ASTM Fuel B, 5h/73°F (23°C)

0-7%

Dielectric Strength

ASTM D149-95a

14 kV/mm

ASTM F104 Line Call Out

F712121B3E12K6M5

Leachable Chloride Content
FSA Method (Typical)

100 ppm

Density ASTM F1315

112 lb/ft3 (1.8 g/cc)

Color (Top/Bottom)

Green

Pressure & Temperature Graphs (Click here to learn more about graphs)
Material Thickness: 1/16"

Liquids

Gases & Steam