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Chemicals – A

O-Ring Fluid Compatibility Guide – A’s

(for reference only)

1 = Recommended  2 = Probably Satisfactory  3 = Marginal  4 = Not Recommended

Chemical/Media
Perfluoro-elastomer

Viton®ETP

Aflas®TFE/P

Viton®FKM

EPDMP.C.

Buna-NNBR

Silicone
Fluoro-silicone

Abietic
Acid
1
Acetaldehyde 2 4 4 4 2 4 2 4
Acetamide 1 3 2 3 1 1 2 1
Acetanilide 1
Acetic
Acid, 30%
1 2 3 1 2 1 2
Acetic
Acid, Glacial
1 2 3 4 2 2 2 4
Acetic
Anhydride
1 2 2 4 2 4 3 4
Acetoacetic
Acid
1
Acetone 1 3 4 4 1 4 3 4
Acetone
Cyanohydrin
1
Acetonitrile 1 1 1 1 1 3
Acetophenetidin 1
Acetophenone 1 4 4 4 1 4 4 4
Acetyl
Bromide
1
Acetyl
Chloride
1 1 1 1 4 4 3 1
Acetyl-o-Toluidine 1
Acetylacetone 1 4 4 4 1 4 4 4
Acetylene 1 1 1 1 1 1 2
Acetylene
Tetrabromide
1 1 1 1 1 4 4 2
Aconitic
Acid
1
Acridine 1
Acrolein 1
Acrylic
Acid
1 4 4 4 3 2
Acrylonitrile 1 3 2 3 4 4 4 4
Adipic
Acid
1 2 2 2 2 1 1
Aero
Lubriplate
1 1 1 1 4 1 2 1
Aero
Shell 17 Grease
1 1 1 1 4 1 2 1
Aero
Shell 1AC Grease
1 1 1 1 4 1 2 1
Aero
Shell 750
1 1 1 1 4 2 4 2
Aero
Shell 7A Grease
1 1 1 1 4 2 2 1
AEROSAFE
2300
1 4 3 4 1 4 3 3
AEROSAFE
2300W
1 4 2 4 1 4 3 3
Aerozene
50 (50%Hydrazine, 50%UDMH)
2 4 2 4 1 3 4 4
Air,
Below 200° F
1 1 1 1 1 1 1 1
Alkanesulphonic
Acid, Mixed
1
Alkazene 1 2 2 2 4 4 4 2
Allyl
Chloride
1 2 2 2 1 2
Aluminum
Acetate
1 3 1 4 1 2 4 4
Aluminum
Bromide
1 1 1 1 1 1 1 1
Aluminum
Chlorate
1
Aluminum
Chloride
1 1 1 1 1 1 2 1
Aluminum
Ethylate
1
Aluminum
Fluoride
1 1 1 1 1 1 2 1
Aluminum
Fluorosilicate
1
Aluminum
Hydroxide
1 2 1 2 2 2
Aluminum
Nitrate
1 1 1 1 1 2 2
Aluminum
Oxalate
1
Aluminum
Phosphate
1 1 1 1 1 1 1
Aluminum
Potassium Sulfate
1
Aluminum
Salts
1 1 1 1 1 1 1 1
Aluminum
Sodium Sulfate
1
Aluminum
Sulfate
1 1 1 1 1 1 1 1
AMBREX
33
1 1 1 1 4 1 4 3
AMBREX
830
1 1 1 1 3 1 2 1
Amines
Mixed (Eg: Allyl, Ethyl, Etc.)
1 4 2 4 2 4 2 4
Aminoanthraquinone 1
Ammonia
+ Lithium Metal Solution
4 4 4 4 2 4 4 4
Ammonia
Gas, Cold
1 4 1 4 1 1 1 4
Ammonia
Gas, Hot
1 4 2 4 2 4 1 4
Ammonia,
Liquid
1 4 3 4 1 2 2 4
Ammonium
Acetate
1
Ammonium
Arsenate
1
Ammonium
Benzoate
1
Ammonium
Bicarbonate
1
Ammonium
Bifluoride
1
Ammonium
Bromide
1
Ammonium
Carbamate
1
Ammonium
Carbonate
1 3 1 3 1 4
Ammonium
Chloride
1 1 1 1 1
Ammonium
Citrate, Dibasic
1
Ammonium
Dichromate
1
Ammonium
Fluoride
1
Ammonium
Fluorosilicate
1
Ammonium
Formate
1
Ammonium
Hydroxide, Conc.
1 1 1 2 1 4 1 1
Ammonium
Iodide
1
Ammonium
Molybdate
1
Ammonium
Nitrate
1 1 1 1 1 1 2
Ammonium
Oxalate
1
Ammonium
Perchlorate
1
Ammonium
Persulfate
1 3 1 3 1 4 1
Ammonium
Phosphate, Dibasic
1 1 1 1 1 1 1
Ammonium
Phosphite
1
Ammonium
Picrate
1
Ammonium
Polysulfide
1
Ammonium
Salts
1 3 1 3 1 1 1 3
Ammonium
Sulfamate
1
Ammonium
Sulfate
1 1 1 1 1 1
Ammonium
Sulfide
1 1 1 1 1 1
Ammonium
Sulfite
1
Ammonium
Thiocyanate
1
Ammonium
Thioglycollate
1
Ammonium
Thiosulfate
1
Ammonium
Tungstate
1
Ammonium
Valerate
1
Amyl
Acetate
1 4 4 4 1 4 4 4
Amyl
Alcohol
1 1 1 1 1 2 4 1
Amyl
Borate
1 1 1 1 4 1
Amyl
Chloride
1 1 1 1 4 1 4 2
Amyl
Chloronaphthalene
1 1 2 1 4 4 4 2
Amyl
Naphthalene
1 1 2 1 4 4 4 1
Amyl
Nitrate
1
Amyl
Nitrite
1
Amyl
Propionate
1
Amylcinnamic
Aldehyde
1
AN-0-3
Grade M
1 1 1 1 4 1 2 1
AN-0-366 1 1 1 1 4 1 4 1
AN-0-6 1 1 1 1 4 1 4 1
AN-VV-0-366B
Hydraulic
1 1 1 1 4 1 4 1
Anderol
(Diester)
1 1 2 1 4 2 4 2
ANG-25
(Diester Base)
1 1 2 1 4 2 2 2
ANG-25
(Glyceral Ester)
1 1 2 1 1 2 2 2
Aniline 1 1 2 2 2 4 4 3
Aniline
Dyes
1 2 1 2 2 4 3 2
Aniline
Hydrochloride
1 2 1 2 3 4 4 2
Aniline
Oils
1 3 2 3 2 4 4 3
Animal
Fats (Lard)
1 1 1 1 2 1 2 1
Anisole 1
Anisoyl
Chloride
1
Ansul
Ether 161 or 181
1 3 1 4 3 3 4 3
Anthracene 1
Anthranilic
Acid
1
Anthraquinone 1
Antimony
Pentachloride
1
Antimony
Pentafluoride
2
Antimony
Sulfate
1
Antimony
Tribromide
1
Antimony
Trichloride
1
Antimony
Trifluoride
2
Antimony
Trioxide
1 1 1 1 1 1
Aqua
Regia
1 2 3 2 3 4 4 3
Arachidic
Acid
1
Argon 1 1 1 1 1 1 2 2
AROCLOR
1248
1 1 1 1 2 3 3 2
AROCLOR
1254
1 1 1 1 2 4 3 1
AROCLOR
1260
1 1 1 1 2 1 1 1
Aromatic
Fuels
1 1 2 1 4 2 4 2
Arsenic
Acid
1 1 1 1 1 1 1 1
Arsenic
Pentafluoride
Arsenic
Trichloride
1 4 4 4 4 1
Arsenic
Trioxide
1
Arsenic
Trisulfide
1
Arsine 1
Ascorbic
Acid
1
Askarel
Transformer Oil
1 1 1 1 4 2 4 2
Aspartic
Acid
1
Asphalt 1 1 1 4 2 4 2
Aspirin 1
ASTM
Oil No.1
1 1 1 1 4 1 1 1
ASTM
Oil No.2
1 1 2 1 4 1 4 1
ASTM
Oil No.3
1 1 3 1 4 1 3 1
ASTM
Oil No.4
1 1 2 1 4 2 4 2
ASTM
Oil No.5
1 1 1 1 4 1
ASTM
Reference Fuel A
1 1 3 1 4 1 4 1
ASTM
Reference Fuel B
1 1 4 1 4 1 4 1
ASTM
Reference Fuel C
1 1 4 2 4 2 4 2
ASTM
Reference Fuel D
1 1 4 1 4 2
AUREX
903R
1 1 1 1 4 1 4 4
Automatic
Transmission Fluid
1 1 1 1 4 1 4
Automotive
Brake Fluid
1 2 1 4 1 3 3 4
AXAREL
9100
1
Azobenzene 1