Special elastomers

SPECIAL ELASTOMERS, WHERE THEY DON’T WORK SE001

The special elastomers chart shown below is unique in that it shows you where these “super compounds” cannot be used. This does not imply that if the chemical is not listed, or if no notation is made, that the compound is suitable for your service. It means nothing more than what it says. These are the chemicals that each manufacturer has designated as not suitable for a dynamic, or moving O-ring application.

  • A = Aflas
  • = Chemraz
  • C* = White colored Chemraz
  • F = Fluoraz
  • = According to the manufacturer this compound is not suitable for either dynamic or static mechanical seal O-ring service. In some cases a compound was given an “n” rating when field experience proved that the published compatibility information was incorrect.
  • c = Caution. May be suitable for static service, but probably not for a dynamic application. The higher the fluid operating temperature the less acceptable. You may want to check for experience in your plant, or test the O-ring in your fluid to be sure.

If there is any question about the use of one of these compounds in a given service you can test the compound by immersing the O-ring in the fluid to be tested for about ten days to two weeks. If the fluid is going to attack the compound, the O-ring it will change weight, shape, or appearance. If the application is going to be at a hot temperature, you might want to put the test container in an oven to duplicate the seal operating conditions

CHEMICAL NAME
F
C
A
C*
Acetaldehyde
c
n
Acetate Solvents
n
c
Acetic Anhydride
c
c
Acetone,Dry
n
n
Acetyl Acetone
n
Acid, Acetic – hot or cold concentrated
n
n
c
Acid, Acetic – cold dilute
c
n
Acid, Acetic 10% Sodium Chloride
c
Acid, Acrylic
n
n
Acid, Alkyl-arylsuphonic
n
Acid, Chloroacetic( Ethyl Chloracetic)
n
Acid, Chlorosulfonic – cool <50%
c
Acid, Chromic
c
Acid, Hydrochloric concentrated and cold
n
n
Acid, Hydroxyacetic
n
Acid, Monochloric Acetic
n
Acid, Nitric (fuming) hot
c
Acid, Phenyl Acetic
n
Acid, Pyrogallic
n
Acid, Pyroligneous
n
Acid, Stearic (Octadecandic Acid)
c
Acid, Sulfonic 140°F dilute
c
Acid, Terephthalic
c
Aerozene 50 (50% hydrazine, 50% UDMH)
c
c
Acetyl Acetone
n
Acetylene
n
n
Acrylonitrile
c
Aldehyde
c
Alkly Amine
n
n
Alkyl-arylsulphonics
n
Alkyl Acetone
c
Alkyl Benzene
n
Alkyl Chloride
n
n
n
Alkylate, Light
n
Aluminum Hydroxide
c
Amines, Mixed (EG:Allyl, Ethyl, Etc.)
c
Amine. N-Butyl
c
Aminobenzoic Acid
n
n
Aminopyridine
n
n
Ammonia Gas, dry
c
Ammonium Bicarbonate (Aqueous)
n
Ammonium Carbonate
n
Ammonium Chloride (Sal Ammonia)
n
Ammonia, Anhydrous Liquid
c
Ammonia + Lithium metal solution
c
n
n
Ammonium Hydroxide (concentrated)
n
n
Ammonium Nitrate (Mono, Di & Tri Basic)
n
Ammonium Phosphate
n
n
Ammonium Thiocyanate
c
Amyl Acetate
n
Amyl Nitrate
n
Anti Freeze ( Water,Alchol or Glycol)
c
Antimony Trioxide
n
n
Arochlor 1248
n
Aqua Regia
c
n
Barium Hydroxide
c
Benzaldehyde
n
c
c
c
Benzene (Coal Tar Product) (Benzol)
n
n
Benzene?Methanol 30/70 or 50/50
c
Benzene Sulfon ic Acid
n
n
Benzine (Petroleum Product)
c
n
Benzol
n
Benzol Chloride
n
n
Benzyl Alchol
n
n
Benzyl Benzoate
n
n
Black Liquor
n
n
Bleach Soluions
n
n
Blood
c
Borax Solutions
n
n
Bordeaux Mixture
n
n
Brine
n
n
Brine, Chloride
c
Bromine Anhydrous
n
n
Bromine, Wet
c
Bromine Pentafluoride
n
c
Bromine Trifluoride
n
c
Bromo Methane
c
Bunker C Fuel Oil
n
n
Butadiene
n
Butyl Acetate
n
n
Butyl Amine
c
Butyl Phthalate
n
Butyraldehyde
n
n
Caproic Acid
c
Carbon Bisulphide
n
Carbon Dioxide (Dry or wet)
c
Carbon Tetrachloride (Anhydrous) >10%
n
n
Cadmium Cyanide
n
n
Calcine Liquors
n
Calcium Arsenate
n
n
Calcium Hydroxide
c
Camphor
n
n
Cane Sugar Liquors
n
n
Caprolactam
n
n
Carbon Bisulfide
n
n
Carbon Tetrachloride
c
c
Caustic Cyanogen
n
Chlorine (Dry or wet)
n
n
c
Chlorine Dioxide
n
c
Chlorine Trifluoride
n
c
Chloroacetone
n
Chloroaniline
n
n
Chlorobenzene
c
Chloroform
n
n
Chlorohydrin
n
n
Chloropicrin
c
Chlorosulfonic Acid
c
Chromium Potassium Sulphate (Aqueous) 10%
c
Coal Tar
n
n
Coppper Acetate (Blue Verdigris)
n
Copper Ammonium Acetate (Aqueous) CAA
n
Coppper Cyanide
c
Creosote (coal tar)
n
n
Cresol (Methol Phenol)
n
n
Cupric Sulphate (Aqueous)
c
Cupros Ammonia Acetate (Aqueous)
n
Cyanide (Aqueous)
n
Cyanogen in water
n
Cyanogen Chloride
n
n
Cyclohexane
c
Cyclohexanone
c
c
c
Cyclohexene (Tetrahydrobenzene)
n
Cycloxexanone
c
DDT solution (Toluene Solvent)
n
DDT soplution (Kerosene Solvent)
n
Diacetone Alchol
n
Diazinon
n
n
Dibutyl Cellusolve Adipate
n
Dibutyl Phthalate
c
Dibromoethyl Benzene
n
Dibutylether
n
Dichlorobenzene
n
Dichloroethane
n
Diesel Fuel #2
n
Diethyl Sulfate
n
n
Diethyl Ether
n
n
Diethylamine
n
n
Diethylbenzene
n
n
Diethylene Glycol
n
n
Di-isobutyl Ketone
n
Di-sopropyl Ketone
n
DI Water
n
Dimethyl Formaldehyde
n
Dimethyl Formide (DMF)
n
n
Dimethyl Hydrazine (UDMH)
n
Dimethyl Phthalate
c
Dimethyl Sulfoxide (DMSO)
n
n
Dinitrochloro Benzene & Styrene
n
Dinitro-Chloro-Benzene (DNCB)
n
Dinitrotoluene
n
Dioxane
n
Diphenyl
n
c
Diphenyl Oxide
c
Dow Chemical 50-4 ET588
c
c
Dow Chemical ET 378
c
c
Dowtherm A (Dry)
c
Drinking Water
c
Dry Cleaning Fluids
c
c
Epichlorohydrin
c
c
Ether
n
Ethyl Acetate
n
n
Ethyl Acrylate
n
Ethyl Benzene
n
c
Ethyl Benzoate
c
n
Ethyl Cellosolve
n
Ethyl Chlorocarbonate
c
Ethyl Chloroformate
c
Ethyl Ether (Ethyl Oxide)
n
Ethyl Formate
c
n
Ethyl Pyridine
n
Ethylene (Ethene)
n
Ethylene Diamine
c
c
Ethylene Dichloride
n
Ethylene Oxide
n
n
n
Ethylene Oxide + Freon 12 12/80 concentration
n
Ethylene Trichloride
n
FC-43 Heptacosofluorotributylamine
n
n
FC 75
n
n
Fluorolube
c
c
c
Formaldehyde (Methanol)
c
n
n
Formalin 40% concentration
n
Formamide
n
n
Formic Acid
c
c
c
Freon TF
n
Freon 11 & Refrig. oil
n
c
c
Freon 12 & Refrig. oil
n
c
c
Freon 22 & Refrig. oil
n
Freon 112 with or without oil
c
c
Freon 113 & Refrig. oil
n
n
n
Freon 114 & Refrig. oil
n
n
n
Freon 114B2
n
n
Freon 115
n
n
Freon 142B
n
n
Freon C318
n
n
Freon MF (F11)
c
c
Freon PCA
n
n
Freon TF
n
n
Freons, Liquid
n
Fuel B or C
n
Fufural
c
Furaldehyde
c
c
Furfuraldhyde
c
c
Fuming Sulfuric Acid (20-25% Oleum)
c
c
n
Gasoline Aromatic
c
n
c
n
Gasoline, 100 & 130 Octane
c
n
c
n
Gasoline, Hi test with Mercaptan, Dydrogen Sulfide
c
n
n
Green Sulfate Liquor
c
n
Halothane
c
c
Halowax Oil
c
c
Heptane
n
n
Hexachloro Acetone
n
n
n
Hexane
c
c
Hexene (Butylethylene)
n
Hexone
n
Hydrazine (mineral filled compound)
c
c
c
Hydrogen Chloride Gas
c
Hydrogen Cyanide
n
n
Hydrogen Peroxide >90%
n
c
Hydroquinol
c
c
Hydroquinone
c
c
Ink
n
Insecticides both Aromatic and Non-aromatic
n
Iodine Pentafloride
n
c
Iodoform
n
Iso-Amyl Acetate
n
Isobutane
n
Isobutylene
n
Isobutyraldehyde
c
n
Isobutyl Methyl Ketone
n
Iso-Octane
c
c
Isopentane
n
Isophorone
c
Isopropyl- Acetate
n
Isopropyl- Acetone
n
Isopropal-Amine
c
Isopropyl-Chloride
n
Isopropyl-Ether
n
n
JP-3,4,5,6, or x
c
c
KEl-F Liquids
n
n
Kerosene
c
n
c
n
Lacquer (MEK Solvent)
n
Lacquer thinner
n
Lead Acetate, Liquid
n
Lead, molten
n
Lead Nitrate
c
Lead Oxide
n
n
Lme Bleach
c
Liquid Oxygen
n
n
c
Liquor, Pulp mill
c
Liquor, Steep
c
Liquor, Sulphate
c
Lithium Hydroxide
n
n
Lye
n
Manganese
n
n
Magnesium Hydroxide
c
Maleic Hydrazide
c
Marsh gas (Methane)
n
Marsh, with solvent
n
Mayonnaise
n
Melamine Resins
n
Mercaptan
n
Mercaptobenzothiazole (MBT)
n
n
Mesityl Oxide (Ketone)
n
n
Methacrylic Acid
c
Methane (marsh gas)
n
Methyl Acetate
n
Methyl Acrylate
n
Methy Butyl Ketone
n
Methyl Chloride
n
Methyl Chloroform
n
Methyl Cyclopentane
n
Methyl Dichloride
n
Methyl Ether
n
Metyl Ethyl Ketone (MEK)
n
n
Methyl Formate
n
Methyl Isobutyl Ketone (MIBK)
n
n
Methyl Isopropyl Ketone
n
Methyl Salicylate
n
Methylene Chloride (Dichloromethane)
n
c
Methylene Dichloride
n
MIL-23699 Lubricants
n
n
MIL-L-7808 Lubricants
n
n
Monobromobenzene
c
Monochlorobenzene
n
Monomethyl Hydrazine
c
c
Naphthalene
n
c
Nickel Acetate
n
Nitric Acid Fuming
c
c
n
Nitric Acid 98%
c
c
Nitric Acid 20%
c
c
Nitro Chloroform
c
Nitro Ethane
n
c
Nitro Methane
n
Nitro Propane
c
c
Nitrogen Tetroxide
n
c
NMP
c
Oil, Kerosene
c
Oleic Acid
n
n
Oleum
n
Orthodichloro Benzene
c
OS 45 type IV
n
Oxygen, liquid
n
n
c
Ozone
c
Para-Al-Ketone
n
n
Paracymene
c
Para-Dichlorobenzene
c
n
Penicillin, Liquid
n
Pentaerythritol
n
n
Perchlorethylene
n
Perchloric Acid
c
Peroxide Of Hydrogen, cold >90%
n
Petroleum Ether
n
Phenol Formaldehyde Mix
c
Phosphate Tributyl
n
Photographic Developers
c
Phthalate Dibutyl
c
Phthalate Dioctyl
c
Phthalic Esters
n
Phthalic Anhydride (Anhydrous)
c
n
n
Pickiling Solution
n
n
Pineridine
c
Polyphenyl Ether
n
Poly Vinyl Acetate
n
Potassium Hydroxide
c
Potassium Perfluoro Acetate
n
Propiolactone, beta 70°F
c
Propionaldehyde
n
Popylene Glycol
n
n
Propylene Oxide
n
Pydraul 230C, 312C & 540C
c
c
Pydraul 29ELT, 30E, 50E, 65E & 90E
c
c
Pydraul 10E
c
c
Pydraul 115E
c
c
Pyridine
c
Pyridine opil
c
Radiation
c
c
Raffinate
c
Rescorcinol
n
n
Salt Water
c
Sea Water
c
Sewage
c
Shellac
n
Skydrol 55 B4
c
Slop Distillers
c
Soap Solutions
c
Sodium Acetate (Anhydrous)
c
Sodium Chlorite (10%)
c
Sodium Cyanide (Aqueous)
n
Sodium Hydroxide
n
Sodium Metasilicate
c

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Posted

  • On February 17, 2018