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Glossary » Design » Oring » Material » Kalrez

Kalrez is the tradename for a perfluoroelastomeric material which is compounded and moulded into O-rings, gaskets, and speciality parts. Kalrez has excellent resistance to temperature and chemicals, some grades have a maximum continuous service temperature of 327°C. Perfluoroelastomer (FFKM) O-rings and gaskets are generally used in applications of aromatic hydrocarbons and in highly corrosive fluids and can generally withstand to a temperature of -7°C to maximum of 480°C.

Kalrez is suitable for dynamic and static seal of o-rings in the environment containing the following chemicals: Glacial Acetic Acid, Acetic Anhydride, Acetone, Acrylonitrile, Aluminium Chloride, Aluminium Sulfate, Anhydrous Ammonia, Cold Gas Ammonia, Hot Gas Ammonia, Ammonium Carbonate, Concentrated Ammonium Hydroxide, Ammonium Nitrate, Ammonium Phosphate, Ammonium Sulfate, Amyl Acetate, Amyl Alcohol, Aniline, Argon, Aromatic Fuel 50%, Beer, Benzene, Benzine (Ligroin), Bleach Liquor, Borax Solutions, Boric Acid, Bromine Gas, Butadiene Monomer, Butane, Butyl Alcohol, Calcium Carbonate, Calcium Chloride, Calcium Hydroxide, Calcium Hypochlorite, Carbon Disulfide, Carbon Monoxide, Carbon Tetrachloride, Carbonic Acid, Chlorinated Solvents, Dry Chlorine, Wet Chlorine, Chloroform, Chlorosulfonic Acid, Chromic Acid, Citric Acid, Cod Liver Oil, Corn Oil, Coal Tar Creosote, Creosylic Acid, Crude Oil (Asphalt Base), Cyclohexane, Diacetone Alcohol, Dibutyl Phthalate, Diesel Oil, Diethylamine Glycol, Dimethyl Phthalate, Diphenyl, Dowtherm A, Ethane, Ethanol, Ethyl Alcohol, Ethyl Benzene, Ethyl Benzoate, Ethyl Chloride, Ethyl Chlorocarbonate, Ethyl Diamine, Ethyl Ether, Ethyl Formate, Ethyl Hexanol, Ethylene, Ethylene Dichloride, Ethylene Glycol, Ethylene Oxide, Ethylene Trichloride, Formaldehyde, Freon 11 (M), Freon 113, Freon 114, Freon 12, Freon 22, Fuel Oil, Furfural, Automotive Gasoline, Gelatine, Glucose, Glycerin, General Glycol, Helium, Heptane, Hexane, Hexyl Alcohol, Hydrazine, Hydrochloric Acid, Hydrofluoric Acid, Hydrogen Peroxide, Iodine, Isobutyl Alcohol, Isopropanol, Isopropyl Acetate, Isopropyl Chloride, Isopropyl Ether, JP 3 MIL-J5624, JP 4 MIL-J5624, JP 5 MIL-J5624, JP 6 MIL-J5624, Kerosene, Lacquers, Animal Fat Lard, Hydraulic Fluid (Phosphate Ester Type) Lindol, Linsed Oil, Liquefied Petroleum Gas (LPG), Lye, Maleic Acid, Mercuric Chloride, Mercury, Methane, Methanol, Methyl Acetate, Methyl Acrylate, Methyl Alcohol, Methyl Bromide, Methyl Butyl Ketone, Methyl Cellosolve, Methyl Chloride, Methyl Ether, Methyl Ethyl Ketone (MEK), Methyl Isobutyl Ketone (MIBK), Methylene Chloride, MIL-F-25558 (RJ-1), MIL-H-5606, JP-5 JP-4 JP-3 MIL-J 5624, Milk, Naphtha, Naphthalene, Naphthalenic, Natural Gas, Neatsfoot Oil, Nitric Acid, Nitrobenzene, Nitroethane, Gas Nitrogen, Nitromethane, Nitropropane, Oleic Acid, Oleum (Fuming Sulfuric Acid), Oxalic Acid, Cold Oxygen, Peanut Oil, Phenol, Phosphoric Acid, Phosphoric Trichloride, Potassium Nitrate, Potassium Sulfate, Propane, Propylene, Propylene Oxide, RJ-1 (MIL-F-25558), Sea Water, Silicone Grease, Silicone Oils, Silver Nitrate, Skydrol 500, Sodium Bicarbonate, Sodium Carbonate, Sodium Chloride, Sodium Hydroxide, Soyabean Oil, Steam to 350F, Stearic Acid, Stoddard Solvent, Styrene Monomer, Sucrose Solutions, Sulfur Chloride, Dry Sulfur Dioxide Gas, Wet Sulfur Dioxide Gas, Sulfur Trioxide, Sulfuric Acid (Concentrated), Sulfurous Acid, Tannic Acid, Tartaric Acid, Tetrachloroethane, Tetrachloroethylene, Tetraethyl Lead, Tetrahydrofuran, Toluene, Triethanolamine, Turpentine, Varnish, Vinegar, Fresh Water, Whiskey, Xylene.

O-Ring material Kalrez is usually suitable for static seal in the environment containing Hydrobromic Acid.

O-Ring material Kalrez is sometimes ok for static seal but not for dynamic seal in the environment containing chemicals such as Acetaldehyde, Acetylene Gas, Benzoic Acid, Ethyl Acetoacetate.

Kalrez is not suitable for o-rings exposed in the environment containing chemicals such as Freon TF, Iso Octane.

Additional Information

There is not enough data to determine whether Kalrez is suitable for using in the environment containing the following chemicals or not. Acetamide, Acetophenone, Acetyl Chloride, Air below 200 C, Alkazene, Aluminium Acetate, Aluminium Flouride, Aluminium Nitrate, Ammonium Chloride, Ammonium Persulfate Solution, Amyl Borate, Amyl Chloronaphthalene, Aniline Oil, Animal Oil, Arachlor 1248, Askarel Transformer Oil, ASTM Fuel A, ASTM Fuel B, ASTM Fuel C, ASTM Fuel D, ASTM Oil Four, ASTM Oil One, ASTM Oil Three, ASTM Oil Two, Automatic Transmission Fluid, Automotive Brake Fluid, Benzaldehyde, Benzene Sulfonic Acid, Benzophenone, Benzyl Alcohol, Benzyl Benzoate, Benzyl Chloride, Brake Fluid, Bromobenzene, Bunker Oil, Butter, Butyl Carbitol, Butyl Cellosolve, Butyraldehyde, Calcium Nitrate, Calcium Sulfide, Carbitol 2, Carbolic Acid (Phenol), Castor Oil, Cellosolve, Tung Oil China Wood Oil, Chloracetic Acid, Chlordane, Chlorine Dioxide, Chlorine Trifluoride, Chrome Plating Solution, Coffee, Coolanol Monsanto, Denatured Alcohol, Diacetone, Dibenzyl Ether, Dichloro-Butane, Di-ester Lubricant MIL-L-7808, Diethylamine, Dimethyl Formamide, Dioxane, Dow Corning 550, Dow Guard, Elco 28 Lubricant, Epoxy Resins, Ethyl Cellulose, Ethyl Mercaptan, Ethyl Oxalate, Ethyl Pentachlorobenzene, Ethyl Silicate, Freon 112, Freon 114B2, Freon 13, Freon 21, Freon 31, Freon 32, Freon 502 (F22+F316), Freon C318, FREON R134A, Furan, Furfuryl Alcohol, Gallic Acid, Petroleum Base Grease, Petroleum Base Hydraulic Oil, Gas Hydrobromic Acid, Hydrocyanic Acid, Hydrogen Gas, Hydroquinone, Lacquer Solvents, Linoleic Acid, Petroleum Base Lubricating Oils, Malathion, Methyl Mercaptan, Methyl Methacrylate, Methyl Oleate, Methyl Propyl Salicylate, Methylacrylic Acid, MIL-F-25656, MIL-G-25760, MIL-H-7083, MIL-L-25681, MIL-R-25576 (RP-1), Type 1 Fuel MIL-S-3136, MIL-S-81087, Mineral Oils, Monovinyl Acetate, N-Hexaldehyde, Nitrogen Tetroxide, N-Octane, N-Pentane, Octyl Alcohol, Oronite 8200, 200-400F Oxygen, Ozone, Petroleum Oil, Phenylhydrazine, Pine Oil, Producer Gas, Propanol, Propyl Acetate, Propyl Alcohol, 10E Pydraul, 540C 312F 230C Pydraul, 90E 65E 50E 30E Pydraul, Transformer Oil Pyranol, 55 (Phosphate Ester) 53 43 Pyrogard 42, Radiation, Rapeseed Oil, Red Oil, RP-1 (MIL-R-25576), Liquefied Under Pressure Sulfur Dioxide, Sulfur Hexafluoride, Tertiary Butyl Alcohol, Tertiary Butyl Mercaptan, Tetrabromoethane, Tetrabutyl Titanate, Tetralin, Type A Transmission Fluid, Turbine Oil, VV-H-910, Wagner 21B Brake Fluid, White Pine Tar.

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