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	EPDM P.C.	Buna-N NBR	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