engineering fundamentals O-Ring Chemical Compatibility Guide
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This page contains a guide to selecting O-ring materials based on chemical compatibility requirements.

The chemical compatibility data can be presented in one of two ways. First, you can select a specific O-ring material to view its compatible chemicals. Or second, you can select a specific chemical to view all its compatible O-ring materials.

Chemical compatibilities are rated and displayed according to the following scale:

  Key to O-Ring Material Compatibility Ratings  
 (4)   Good, both for static and dynamic seals
 (3)   Fair, usually OK for static seals
 (2)   Sometimes OK for static seals; not OK for dynamic seals
 (1)   Poor
 (0)   No Data
 
O-Ring Compatibilities
O-Ring Materials
(select a material to show its compatible chemicals)
Aflas Buna-N (Nitrile) Butyl
Chemraz Epichlorohydrin Ethylene-Propylene
Fluorocarbon Fluorosilicone Hypalon
Kalrez Natural Rubber Neoprene
Nitrile, Hydrogenated Polyacrylate Polysulfide
Polyurethane, Cast Polyurethane, Millable Silicone
Styrene Butadiene Teflon, Virgin Vamac
 
Order by Chemical Name
Chemicals Compatible with Neoprene
(select a chemical to show its compatible O-ring materials)
Acetamide (4) Acetic Anhydride (4) Acetylene Gas (4)
Acrylonitrile (4) Aluminium Chloride (4) Aluminium Flouride (4)
Aluminium Nitrate (4) Aluminium Sulfate (4) Ammonia, Anhydrous (4)
Ammonia, Gas, Cold (4) Ammonium Carbonate (4) Ammonium Chloride (4)
Ammonium Hydroxide, Concentrated (4) Ammonium Nitrate (4) Ammonium Phosphate (4)
Ammonium Sulfate (4) Amyl Alcohol (4) Amyl Borate (4)
ASTM Oil One (4) ASTM Oil Two (4) Benzoic Acid (4)
Borax Solutions (4) Boric Acid (4) Butyl Alcohol (4)
Calcium Carbonate (4) Calcium Chloride (4) Calcium Hydroxide (4)
Calcium Nitrate (4) Calcium Sulfide (4) Carbon Monoxide (4)
Castor Oil (4) China Wood Oil, Tung Oil (4) Chloracetic Acid (4)
Citric Acid (4) Coffee (4) Denatured Alcohol (4)
Diethylamine Glycol (4) Dow Corning 550 (4) Dow Guard (4)
Epoxy Resins (4) Ethanol (4) Ethyl Alcohol (4)
Ethyl Diamine (4) Ethyl Hexanol (4) Ethyl Silicate (4)
Ethylene Glycol (4) Freon 113 (4) Freon 114 (4)
Freon 114B2 (4) Freon 13 (4) Freon 22 (4)
Freon 31 (4) Freon 32 (4) Freon 502 (F22+F316) (4)
Freon C318 (4) Freon TF (4) Gelatine (4)
Glycerin (4) Glycol, General (4) Helium (4)
Hydrogen Gas (4) Iso Octane (4) Isobutyl Alcohol (4)
Linsed Oil (4) Lye (4) Mercuric Chloride (4)
Mercury (4) Methanol (4) Milk (4)
MIL-S-81087 (4) Mineral Oils (4) Natural Gas (4)
N-Hexaldehyde (4) Nitrogen, Gas (4) N-Pentane (4)
Oronite 8200 (4) Oxygen, Cold (4) Petroleum Oil (4)
Potassium Nitrate (4) Potassium Sulfate (4) Propanol (4)
Propyl Alcohol (4) Silicone Grease (4) Silicone Oils (4)
Silver Nitrate (4) Sodium Bicarbonate (4) Sodium Carbonate (4)
Sodium Chloride (4) Sodium Hydroxide (4) Soyabean Oil (4)
Sucrose Solutions (4) Sulfur Hexafluoride (4) Tannic Acid (4)
Tartaric Acid (4) Whiskey (4) Acetic Acid, Glacial (3)
Aluminium Acetate (3) Ammonia, Gas, Hot (3) Animal Oil (3)
ASTM Fuel A (3) Automatic Transmission Fluid (3) Automotive Brake Fluid (3)
Beer (3) Benzene Sulfonic Acid (3) Butter (3)
Carbonic Acid (3) Cod Liver Oil (3) Coolanol Monsanto (3)
Diethylamine (3) Ethane (3) Ethyl Cellulose (3)
Ethyl Formate (3) Freon 112 (3) Fuel Oil (3)
Gallic Acid (3) Glucose (3) Heptane (3)
Hexane (3) Hexyl Alcohol (3) Hydraulic Oil, Petroleum Base (3)
Hydrazine (3) Hydrocyanic Acid (3) Hydrogen Peroxide (3)
Isopropanol (3) Lard, Animal Fat (3) Lubricating Oils, Petroleum Base (3)
Methane (3) Methyl Alcohol (3) Methyl Cellosolve (3)
Methylacrylic Acid (3) MIL-F-25558 (RJ-1) (3) MIL-G-25760 (3)
MIL-H-5606 (3) MIL-H-7083 (3) MIL-L-25681 (3)
Octyl Alcohol (3) Oxalic Acid (3) Ozone (3)
Producer Gas (3) Pyranol, Transformer Oil (3) Rapeseed Oil (3)
RJ-1 (MIL-F-25558) (3) Sea Water (3) Stearic Acid (3)
Sulfur Dioxide Gas, Wet (3) Sulfurous Acid (3) Tertiary Butyl Alcohol (3)
Tetrabutyl Titanate (3) Transmission Fluid, Type A (3) Turbine Oil (3)
Vinegar (3) VV-H-910 (3) Wagner 21B Brake Fluid (3)
Water, Fresh (3) ASTM Oil Three (2) Butyl Carbitol (2)
Calcium Hypochlorite (2) Carbitol 2 (2) Chlordane (2)
Crude Oil (Asphalt Base) (2) Elco 28 Lubricant (2) Kerosene (2)
Methyl Ether (2) MIL-R-25576 (RP-1) (2) Nitroethane (2)
Oleic Acid (2) Propane (2) Radiation (2)
Red Oil (2) RP-1 (MIL-R-25576) (2) Stoddard Solvent (2)
Tetraethyl Lead (2) Acetaldehyde (1) Acetone (1)
Acetophenone (1) Acetyl Chloride (1) Air below 200 C (1)
Alkazene (1) Amyl Acetate (1) Amyl Chloronaphthalene (1)
Aniline Oil (1) Arachlor 1248 (1) Argon (1)
Aromatic Fuel 50% (1) Askarel Transformer Oil (1) ASTM Fuel B (1)
ASTM Fuel C (1) ASTM Fuel D (1) ASTM Oil Four (1)
Benzaldehyde (1) Benzene (1) Benzyl Chloride (1)
Brake Fluid (1) Bromine Gas (1) Bromobenzene (1)
Butyl Cellosolve (1) Carbolic Acid (Phenol) (1) Carbon Disulfide (1)
Carbon Tetrachloride (1) Cellosolve (1) Chlorinated Solvents (1)
Chlorine Dioxide (1) Chlorine Trifluoride (1) Chlorine, Dry (1)
Chlorine, Wet (1) Chloroform (1) Chlorosulfonic Acid (1)
Chrome Plating Solution (1) Chromic Acid (1) Creosylic Acid (1)
Cyclohexane (1) Diacetone (1) Dibenzyl Ether (1)
Dibutyl Phthalate (1) Dichloro-Butane (1) Di-ester Lubricant MIL-L-7808 (1)
Dimethyl Formamide (1) Dimethyl Phthalate (1) Dioxane (1)
Diphenyl (1) Dowtherm A (1) Ethyl Benzene (1)
Ethyl Benzoate (1) Ethyl Chloride (1) Ethyl Chlorocarbonate (1)
Ethyl Ether (1) Ethyl Oxalate (1) Ethyl Pentachlorobenzene (1)
Ethylene Dichloride (1) Ethylene Oxide (1) Ethylene Trichloride (1)
Formaldehyde (1) Freon 11 (M) (1) Furan (1)
Furfuryl Alcohol (1) Gasoline, Automotive (1) Hydrochloric Acid (1)
Hydroquinone (1) Iodine (1) Isopropyl Acetate (1)
Isopropyl Chloride (1) Isopropyl Ether (1) JP 3 MIL-J5624 (1)
JP 4 MIL-J5624 (1) JP 5 MIL-J5624 (1) JP 6 MIL-J5624 (1)
Lacquer Solvents (1) Lacquers (1) Lindol, Hydraulic Fluid (Phosphate Ester Type) (1)
Maleic Acid (1) Methyl Acrylate (1) Methyl Bromide (1)
Methyl Butyl Ketone (1) Methyl Chloride (1) Methyl Ethyl Ketone (MEK) (1)
Methyl Isobutyl Ketone (MIBK) (1) Methyl Methacrylate (1) Methyl Oleate (1)
Methyl Propyl Salicylate (1) Methylene Chloride (1) MIL-F-25656 (1)
MIL-J 5624, JP-3, JP-4, JP-5 (1) Monovinyl Acetate (1) Naphtha (1)
Naphthalene (1) Naphthalenic (1) Neatsfoot Oil (1)
Nitrobenzene (1) Nitrogen Tetroxide (1) Nitromethane (1)
Nitropropane (1) N-Octane (1) Oleum (Fuming Sulfuric Acid) (1)
Oxygen, 200-400F (1) Phenol (1) Phenylhydrazine (1)
Phosphoric Acid (1) Phosphoric Trichloride (1) Pine Oil (1)
Propyl Acetate (1) Propylene (1) Propylene Oxide (1)
Pydraul, 10E (1) Pydraul, 230C, 312F, 540C (1) Pydraul, 30E, 50E, 65E, 90E (1)
Pyrogard 42, 43, 53, 55 (Phosphate Ester) (1) Skydrol 500 (1) Styrene Monomer (1)
Sulfur Chloride (1) Sulfur Dioxide Gas, Dry (1) Sulfur Dioxide, Liquefied Under Pressure (1)
Sulfur Trioxide (1) Tertiary Butyl Mercaptan (1) Tetrabromoethane (1)
Tetrachloroethane (1) Tetrachloroethylene (1) Tetrahydrofuran (1)
Tetralin (1) Toluene (1) Triethanolamine (1)
Turpentine (1) Varnish (1) White Pine Tar (1)
Xylene (1) Ammonium Persulfate Solution (0) Aniline (0)
Benzine (Ligroin) (0) Benzophenone (0) Benzyl Alcohol (0)
Benzyl Benzoate (0) Bleach Liquor (0) Bunker Oil (0)
Butadiene Monomer (0) Butane (0) Butyraldehyde (0)
Corn Oil (0) Creosote, Coal Tar (0) Diacetone Alcohol (0)
Diesel Oil (0) Ethyl Acetoacetate (0) Ethyl Mercaptan (0)
Ethylene (0) Freon 12 (0) Freon 21 (0)
FREON R134A (0) Furfural (0) Grease, Petroleum Base (0)
Hydrobromic Acid (0) Hydrobromic Acid, Gas (0) Hydrofluoric Acid (0)
Linoleic Acid (0) Liquefied Petroleum Gas (LPG) (0) Malathion (0)
Methyl Acetate (0) Methyl Mercaptan (0) MIL-S-3136, Type 1 Fuel (0)
Nitric Acid (0) Peanut Oil (0) Steam to 350F (0)
Sulfuric Acid (Concentrated) (0)
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