Diaphragm and Chemical Compatibility
Use the table below to search chemicals and their compatibility with our DiaFlex® and Flex-A-Prene® diaphragms!
NOTE: 28 Day Immersions at 73°F
E = Excellent
G = Good
F = Fair
U = Not Recommended
| Chemical, Conc. % (1) | Flex-A-Prene® | DiaFlex® |
|---|---|---|
| Acetate Solvents | F | U |
| Acetic Acid, 10% in w | E | E |
| Acetic Acid, 50-60% in w | G | E |
| Acetic Acid, Glacial, 100% | G | U |
| Acetic Anhydride | E | G |
| Acetone | U | U |
| Acrylonitrile | G | G |
| Adipic Acid, 100% in alc | G | - |
| Air | E | E |
| Alcohols General | E | E |
| Aliphatic Hydrocarbons | U | U |
| Allyl Alcohol | F | E |
| Alum, 5% in w | E | E |
| Aluminum Chloride, 53% in w | E | E |
| Aluminum Chlorohydrate 50% | E | E |
| Aluminum Fluoride, 0.1% in w | E | E |
| Aluminum Hydroxide, 2% in w | E | E |
| Aluminum Nitrate, 39% in w | E | E |
| Aluminum Potassium Sulfate | E | E |
| Aluminum Sulfate | E | E |
| Aluminum Sulfate, 50% in w | E | E |
| Aluminum Salts | E | E |
| Amines | F | G |
| Ammonia, Anhydrous Liquid | G | G |
| Ammonium Acetate, 45% in w | E | E |
| Ammonium Bifluoride, 50% in w | E | E |
| Ammonium Bisulfite, 50% | E | E |
| Ammonium Carbonate, 50% in w | E | E |
| Ammonium Chloride, 23% in w | E | E |
| Ammonium Hydroxide, 5-10% in w | E | E |
| Ammonium Hydroxide, 30% in w | E | E |
| Ammonium Nitrate, 54% in w | E | E |
| Ammonium Persulfate, 30% in w | E | E |
| Ammonium Phosphate, 21% in w | E | E |
| Ammonium Salts | E | E |
| Ammonium Sulfate, 40% in w | E | E |
| Amyl Acetate | G | E |
| Amyl Alcohol | U | E |
| Amyl Chloride | F | E |
| Aniline | F | E |
| Aniline Hydrochloride | F | E |
| Antimony Salts | E | E |
| Antimony Trichloride | E | E |
| Aqua Regia | U | - |
| Aqueous Ammonia | E | U |
| Aromatic Hydrocarbons | U | U |
| Arsenic Acid, 20% in w | F | E |
| Arsenic Salts | E | E |
| ASTM Reference No. 1 Oil | F | F |
| ASTM Reference No. 2 Oil | U | F |
| ASTM Reference No. 3 Oil | U | F |
| Barium Carbonate, 1% in w | E | E |
| Barium Chloride, 27% in w | E | E |
| Barium Hydroxide, 5% in w | E | E |
| Barium Salts | E | E |
| Barium Sulfate, <1% in dilute acids | E | E |
| Barium Sulfide | E | E |
| Beer | E | E |
| Benzaldehyde | U | E |
| Benzene | U | E |
| Benzenesulfonic Acid | U | E |
| Benzoic Acid | E | E |
| Benzyl Alcohol | E | E |
| Bleach Liquor, 22% in w | E | E |
| Borax, 6% in w | E | E |
| Boric Acid, 4% in w | E | E |
| Bromine, Anhydrous Liquid | U | E |
| Butadiene | E | E |
| Butane | E | E |
| Butyl Acetate | G | F |
| Butyl Alcohol | G | E |
| Butyric Acid | G | G |
| Calcium Bisulfite, 1% in w | E | E |
| Calcium Bromide 52% | E | E |
| Calcium Carbonate, 25% acids | E | E |
| Calcium Chlorate, 30% in w | E | E |
| Calcium Chloride, 30% in w | E | E |
| Calcium Hydroxide, 10% in glycerol | E | E |
| Calcium Hydroxide, 20% in water | E | E |
| Calcium Hypochlorite, 20% in w | E | E |
| Calcium Nitrate, 55% in w | E | E |
| Calcium Oxide, 3% in w | E | E |
| Calcium Salts | E | E |
| Calcium Sulfate, 1% in w | E | E |
| Carbon Dioxide, Wet/Dry | E | E |
| Carbon Disulfide | U | F |
| Carbon Monoxide | E | E |
| Carbon Tetrachloride | U | E |
| Carbonic Acid | E | E |
| Castor Oil | F | E |
| Cellosolve | F | F |
| Cellosolve Acetate | F | F |
| Chloroacetic Acid, 20% in w | G | E |
| Chlorobenzene, Mono, Di, Tri | U | G |
| Chloroform | U | F |
| Chlorosulfonic Acid | U | U |
| Chromic Acid, 10-20% in w | E | E |
| Chromic Acid, 50% in w | F | G |
| Chromium Salts | E | E |
| Citric Acid, 50% in w | E | E |
| Coconut Oil | F | E |
| Copper Salts | E | E |
| Corn Syrup | E | E |
| Cottonseed Oil | F | E |
| Cresol (m, o, or p) | U | E |
| Cresylic Acid | G | G |
| Cupric Chloride, 40% in w | E | E |
| Cupric Cyanide, 10% in dilute bases | E | E |
| Cupric Nitrate, 70% in w | E | E |
| Cupric Sulfate, 13% in w | E | E |
| Cyclohexane | U | E |
| Cyclohexanone | U | F |
| Detergent Solutions | G | E |
| Diacetone Alcohol | U | U |
| Dibutyl Phthalate | E | U |
| Dichlorobenzene | U | E |
| Diesel Fuel | U | E |
| Diethylamine, 2.5% in w | E | U |
| Diethylene Glycol | E | E |
| Diethyl Ether | F | G |
| Dimethylformamide | G | U |
| Dimethylsulfoxide | E | U |
| Dioctyl Phthalate | E | E |
| Dioxane | U | U |
| Ether | F | G |
| Ethyl Acetate | F | U |
| Ethyl Alcohol (Ethanol) | F | E |
| Ethyl Benzoate | U | E |
| Ethyl Chloride | F | E |
| Ethyl Ether | F | G |
| Ethylamine, 70% in w | U | - |
| Ethylene Bromide | U | E |
| Ethylene Chlorohydrin | E | G |
| Ethylene Diamine | F | U |
| Ethylene Dichloride | F | E |
| Ethylene Glycol | E | E |
| Ethylene Oxide | E | E |
| Fatty Acids | F | E |
| Ferric Chloride, 43% in w | E | E |
| Ferric Hydroxide | E | E |
| Ferric Nitrate, 60% in w | E | E |
| Ferric Salts | E | E |
| Ferric Sulfate, 5% in w | E | E |
| Ferrous Chloride, 40% in w | E | E |
| Ferrous Salts | E | E |
| Ferrous Sulfate, 5% in w | E | E |
| Fluoborate Salts | E | E |
| Fluoboric Acid, 48% in w | U | E |
| Fluorine Gas | U | U |
| Fluosilicic Acid, 30% in w (Fluoride) | E | E |
| Formaldehyde, 37% in w | U | E |
| Formic Acid, 25% in w | E | E |
| Formic Acid, 40-50% in w | G | E |
| Formic Acid, 98% in w | G | E |
| Fruit Juice | E | E |
| Fuel Oil | U | E |
| Furfural | U | F |
| Gallic Acid, 17% in acetone | G | - |
| Gasoline, Automotive | U | E |
| Gelatin | E | E |
| Glucose, 50% in w | E | E |
| Glycerol, (Glycerin) | E | E |
| Glycolic Acid, 70% in w | G | F |
| Heptane | U | E |
| Hexane | U | E |
| Hydrazine | F | E |
| Hydrobromic Acid, 20-50% in w | U | E |
| Hydrobromic Acid, 100% in w | U | E |
| Hydrochloric Acid, 10% in w | E | E |
| Hydrochloric Acid, 37% in w | G | E |
| Hydrocyanic Acid | E | E |
| Hydrofluoric Acid, 10% in w | U | E |
| Hydrofluoric Acid, 25% in w | U | E |
| Hydrofluoric Acid, 40-48% in w | U | E |
| Hydriodic Acid, 55-58% in w | G | E |
| Hydrogen Peroxide, 3% in w | E | E |
| Hydrogen Peroxide, 10% in w | E | E |
| Hydrogen Peroxide, 30% in w | E | E |
| Hydrogen Peroxide, 90% in w | G | F |
| Hydrogen Sulfide | E | E |
| Hydroquinone, 7% in w | G | E |
| Hypochlorous Acid, 25% in w | E | E |
| Iodine, 50 ppm in w | E | E |
| Isobutyl Alcohol | F | E |
| Isooctane | U | E |
| Isopropyl Acetate | G | U |
| Isopropyl Alcohol | F | E |
| Isopropyl Ether | F | U |
| Jet Fuel, Jp8 | U | U |
| Kerosene | U | E |
| Ketones | U | F |
| Lacquer Solvents | G | U |
| Lactic Acid, 3-10% in w | E | E |
| Lactic Acid, 85% in w | G | G |
| Lard, Animal Fat | F | E |
| Lead Acetate, 35% in w | E | E |
| Lead Nitrate, 27% in w | E | E |
| Lead Salts | E | E |
| Lemon Oil | U | E |
| Lime Oil | U | E |
| Lime Slurry (Calcium Hydroxide) | E | E |
| Limonene-D | U | U |
| Linoleic Acid | F | E |
| Linseed Oil | F | E |
| Lubricating Oils, Petroleum | U | E |
| Magnesium Carbonate, 1% in w | E | E |
| Magnesium Chloride, 35% in w | E | E |
| Magnesium Hydroxide | E | E |
| Magnesium Hydroxide,10% in acids | E | E |
| Magnesium Nitrate, 50% in w | E | E |
| Magnesium Sulfate, 25% in w | E | E |
| Maleic Acid, 30% in w | F | E |
| Malic Acid, 36% in w | E | E |
| Manganese Salts | E | E |
| Manganese Sulfate, 34% in w | E | E |
| Mercuric Chloride, 6% in w | E | E |
| Mercuric Cyanide, 8% in w | E | E |
| Mercurous Nitrate, 10% in dilute acids | E | E |
| Mercury | E | E |
| Mercury Salts | E | E |
| Methane Gas | E | E |
| Methyl Acetate | G | G |
| Methyl Alcohol (Methanol) | E | E |
| Methyl Bromide | F | E |
| Methyl Chloride | F | E |
| Methyl Ethyl Ketone | U | U |
| Methyl Isobutyl Ketone | U | U |
| Methylene Chloride | F | E |
| Methyl Methacrylate | U | G |
| Milk | E | E |
| Mineral Oil | U | E |
| Mineral Spirits | U | E |
| Molasses | E | E |
| Monoethanolamine | F | F |
| Motor Oil | U | G |
| Naphtha | U | E |
| Naphthalene | U | E |
| Nickel Chloride, 40% in w | E | E |
| Nickel Nitrate, 75% in w | E | E |
| Nickel Salts | E | E |
| Nickel Sulfate, 25% in w | E | E |
| Nitric Acid, 10% in w | E | E |
| Nitric Acid, 35% in w | E | E |
| Nitric Acid, 68-71% in w | U | E |
| Nitrobenzene | U | F |
| Nitromethane | U | G |
| Nitrous Acid, 10% in w | E | G |
| Oils, Animal | F | G |
| Oils, Essential | U | E |
| Oils, Hydraulic (Phosphate Ester) | U | G |
| Oils, Hydrocarbon | U | G |
| Oils, Vegetable | F | E |
| Oleic Acid | F | E |
| Oleum, 25% in w | E | F |
| Ortho Dichlorobenzene | U | U |
| Oxalic Acid, 12% in w | G | G |
| Ozone, 300pphm | E | E |
| Palmitic Acid, 100% in ether | F | E |
| Peracetic Acid, up to 15% | F | E |
| Peracetic acid, 15- 18% | F | E |
| Peracetic Acid, 20-30% | U | E |
| Perchloric Acid, 67% in w | E | E |
| Perchloroethylene | F | E |
| Phenol, 5-10% in w | E | E |
| Phenol, 91% in w | E | E |
| Phosphoric Acid, <10% in w | E | E |
| Phosphoric Acid, 25% in w | E | E |
| Phosphoric Acid, 85% in w | E | E |
| Phosphorous Trichloride Acid | G | E |
| Photographic Solutions | G | G |
| Phthalic Acid, 9% in alc | E | E |
| Phthalic Anhydride, 9% in alc | E | E |
| Picric Acid, 1% in w | U | E |
| Plating Solutions | E | E |
| Polyaluminum Chloride (PAC) in w | E | E |
| Potassium Amyl Xanthate (PAX) | - | E |
| Potassium Carbonate, 55% in w | E | E |
| Potassium Chloride, 20% in w | E | E |
| Potassium Cyanide, 33% in w | E | E |
| Potassium Dichromate, 5% in w | E | E |
| Potassium Hydroxide, 43% in w | E | U |
| Potassium Hypochlorite, 70% in w | E | E |
| Potassium Iodide, 56% in w | E | E |
| Potassium Nitrate, 10% in w | E | E |
| Potassium Oxide, 50% in w | E | E |
| Potassium Permanganate, 6% in w | E | E |
| Potassium Salts | E | E |
| Potassium Sulfate, 10% in w | E | E |
| Potassium Sulfide, 20% in w | E | E |
| Propyl Alcohol (Propanol) | F | E |
| Propylene Glycol | E | E |
| Propylene Oxide | E | U |
| Pyridine | F | U |
| Salicylic Acid, 1% in w | E | E |
| Silicone Oils | F | E |
| Silver Nitrate, 55% in w | E | E |
| Skydrol 500A | U | - |
| Soap Solutions | G | E |
| Sodium Acetate, 55% in w | E | E |
| Sodium Aluminate | E | E |
| Sodium Benzoate, 22% in w | E | E |
| Sodium Bicarbonate, 7% in w | E | E |
| Sodium Bisulfate, 50% in w | E | E |
| Sodium Bisulfite | E | E |
| Sodium Carbonate,7% in w (soda ash) | E | E |
| Sodium Chlorate, 45% in w | E | E |
| Sodium Chloride, 20% in w | E | E |
| Sodium Chlorite, 12% in | E | E |
| Sodium Cyanide, 30% in w | E | E |
| Sodium Dichromate, 70% in w | E | E |
| Sodium Fluoride, 3% in w | E | E |
| Sodium Hydroxide, 10-15% in w | E | U |
| Sodium Hydroxide, 30-50% in w | E | U |
| Sodium Hypochlorite, 25% in w | E | E |
| Sodium Nitrate, 3.5% in w | E | E |
| Sodium Perborate, 25% in w | E | E |
| Sodium Permanganate, 20% in w | E | E |
| Sodium Permanganate, 40% in w | U | E |
| Sodium Persulfate | E | E |
| Sodium Peroxide, 10% in w | E | E |
| Sodium Peroxide, 20% in w | E | E |
| Sodium Phosphate, 30% in w | E | E |
| Sodium Salts | E | E |
| Sodium Sulfate, 38% in w | E | E |
| Sodium Sulfide, 45% in w | E | E |
| Sodium Sulfite, 10% in w | E | E |
| Stannic Chloride, 50% in w | E | E |
| Stannous Chloride, 45% in w | E | E |
| Stearic Acid, 5% in alc | F | E |
| Styrene Monomer | U | - |
| Sulfur Chloride | U | E |
| Sulfur Dioxide, Gas Dry | E | E |
| Sulfur Dioxide, Gas Wet | E | E |
| Sulfur Trioxide, Wet | G | E |
| Sulfuric Acid, 10% in w | E | E |
| Sulfuric Acid, 30% in w | E | E |
| Sulfuric Acid, 95-98% in w | U | E |
| Sulfurous Acid | E | E |
| Tannic Acid, 75% in w | G | E |
| Tanning Solutions | E | E |
| Tartaric Acid, 56% in w | E | E |
| Tetrahydrofuran | U | U |
| Thionyl Chloride | E | E |
| Tin Salts | E | E |
| Titanium Salts | E | E |
| Toluene | U | - |
| Trichloroacetic Acid, 90% in w | G | G |
| Trichloroethane | F | G |
| Triethanolamine | F | F |
| Trichloroethylene | U | E |
| Trichloropropane | F | E |
| Tricresyl Phosphate | E | E |
| Trisodium Phosphate | E | E |
| Turpentine | U | E |
| Urea, 20% in w | E | E |
| Uric Acid | E | E |
| Vinegar | E | E |
| Vinyl Acetate | G | E |
| Water, Brine | E | E |
| Water, Deionized | E | E |
| Water, Distilled | E | E |
| Xylene | U | E |
| Zinc Chloride, 80% in w | E | E |
| Zinc Salts | E | E |
| Zinc Sulfate, 30% in w | E | E |
