Thermoseal C-4409 is a high performance compressed fiber gasket material with a galvanized low carbon steel insert. C-4409 is manufactured using synthetic fibers with a Nitrile binder system and is an excellent gasket material for sealing liquids in high stress and high temperature applications seeing temperatures up to 800°F (426°C) and for sealing gases and steam in temperatures up to 550°F (287°C) . This material is typically used as a gasket or seal for compressors, pipe flanges, manways, pumps and valves and is often used in place of a spiral wound gasket.
Thermoseal C-4409 is available in sheets 60" x 60" square in the following thicknesses: 3/64", 1/16", 3/32" and 1/8". If requested, Atlantic Gasket will gladly die-cut or waterjet cut parts to your exact requirements and can ship finished parts the same day if needed.
Meets ASTM F104 F712112B3E11M8
|Physical Properties||Test Method||Typical Valve|
|Creep Relaxation (.031")||ASTM F38B||20%|
|Recovery (min.)||ASTM F36J||50%|
(After Immersion in Fuel B for 5 hrs. at 73 F (C))
|ASTM F 146||10 (max.)|
|Thickness Increase ASTM F146
After immersion in:
|ASTM Oil 1 5h/300°F (149°C)
ASTM Oil IRM903, 5h/300°F (149°C)
ASTM Fuel A 5h/73°F (23°C)
ASTM Fuel B 5h/73°F (23°C)
|Dielectric Strength||ASTM D149-95a||N/A|
|Density||ASTM F1315||125 pcf (2.0 g/cc)|
|Leachable Chloride Content||FSA Method (Typical)||N/A|
This information is furnished as a guide for selecting materials. Atlantic Gasket Corp. disclaims liability for results or use of this information. It is the customer’s responsibility to obtain and test samples when determining suitability of material for a particular application.
Click here to download a specification PDF document.