Thermoseal C-4439

Thermoseal C-4439 is an excellent high-performance material for use in high temperature and high-stress applications. The expanded metal reinforcement is a galvanized low carbon steel insert which makes this material suitable when vibrations are present. This material is manufactured with a combination of fiberglass and aramid and inorganic fibers reinforced with a nitrile binder.

Polymer Name: Acrylonitrile Butadiene Rubber (NBR)

End Uses: Fuel Tanks, Gaskets, Pipe Seals

Features: High Performance

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Features & Benefits

Materials Features

Applications & Uses

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Line Call OutF712112B3E12K6M8-ASTM F104
Compressibility (1/32")6 - 12 %ASTM F36J
Creep relaxation (1/32")20%ASTM F38B
Density131lb/ft ³ (2.1 g/cc ³)ASTM D149-95a
Dielectric Strength10kV/mmASTM D149-95a
KLINGER Hot Compression Test Thickness Decrease 572°F (23°C) additional6%-
KLINGER Hot Compression Test Thickness Decrease 73°F (23°C) initial10%-
Leachable Chloride Content150ppmFSA Method
Recovery 50%ASTM F36J
Thickness Increase ASTM F146 after immersion in ASTM Fuel A, 5h/73°F (23°C) 0 - 5%-
Thickness Increase ASTM F146 after immersion in ASTM Fuel B, 5h/73°F (23°C)0 - 5%-
Thickness Increase ASTM F146 after immersion in ASTM Oil IRM 901, 5h/300°F (149°C)0 - 5%-
Thickness Increase ASTM F146 after immersion in ASTM Oil IRM 903, 5h/300°F (149°C) 5 - 10%-
Weight increase ASTM F146 after immersion in Fuel B, 5h/73°F (23°C)max. 9 %-