Kalrez 4079 perfluroelastomer combines the elastomeric properties of Viton with the chemical resistance of PTFE. Kalrez 4079 should be considered for service in high temperature, corrosive environments such as: Polar Solvents such as Ketones, Esters and Ethers / Strong Organic Solvents such as Tetrahydrofuran, Bensene, Dimethylformamide and Perchloroethylene / Acids such as Hydrochloric, Nitric and Sulfuric / Strong Oxidizing Agents such as Dinitrogen Tetroxide and Fuming Nitric Acid / Metal Halogen Compounds such as Titanium Tetrachloride and Diethylaluminum Chloride / Hot Mercury and Caustic Soda / Chlorine-Wet and Dry / Inorganic Salt Solutions / Fuels such as JP-5, Aviation gas and Kerosene. Kalrez 4079 exhibits exceptional thermal stability and is serviceable at long-term temperatures to 316° C and intermittent temperatures to 343° C. Kalrez 4079 is not recommended for use in sealing applications below -5° C.
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