Thermoseal C-4300 is a general purpose high performance compressed gasket material which has good chemical and sealability characteristics while being reasonably priced. C-4300 is manufactured from synthetic fibers with a Nitrile binder system and is an exceptional gasket material for sealing liquids in high temperature applications up to 700°F (371°C) and for sealing gases and steam at temperatures up to 400°F (204°C). This material is typically used as a gasket or seal for compressors, pipe flanges, manways, pumps and valves.
Thermoseal C-4300 is available in sheets 60" x 60" square in the following thicknesses: 1/32", 3/64", 1/16", 3/32" and 1/8". If required, Atlantic Gasket will gladly die-cut or waterjet cut parts to your exact dimensions and can ship finished parts the same day if needed.
Meets ASTM F104 F712111B4E12K6M4
|Physical Properties||Test Method||Typical Valve|
|Creep Relaxation (.031")||ASTM F38B||25%|
|Sealability (.031")||ASTM F37A||<0.25 ml/hr|
|Gas Permeability||DIN 3535/6||<0.5 ml/min|
|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||18 kV/mm|
|Density||ASTM F1315||100 pcf. (1.6 g/cc)|
|Leachable Chloride Content||FSA Method (Average)||200 ppm|
|Color||N/A||Black, white or Green|
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.