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Chemicals – O

O-Ring Fluid Compatibility Guide – O’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
o-Chlorophenol 1 1 1 4 4 4 2
o-Dichlorobenzene 1 1 4 1 4 4 4 2
o-Nitrotoluene 1
o-sec-Amylphenol 1
Octachloro
Toluene
1 1 1 4 4 4 2
Octafluorocyclobutane 2 2 2 1
Octafluoropropane 2
Octanal 1
Olefins 1
Oleic
Acid
1 2 1 2 4 3 4
Oleum
(Fuming Sulfuric Acid)
1 1 1 1 4 3 4 2
Oleyl
Alcohol
1
Olive
Oil
1 1 1 1 2 1 3 1
Orthochloro
Ethyl Benzene
1 1 4 1 4 4 4 2
Oxalic
Acid
1 1 1 1 1 2 2 1
Oxygen,
Gas (Hot)
1 3 4 3 4 4 2 1
Oxygen,
Liquid
2 4 4 4 4 4
Ozonated
Deionized Water
1 2 1 2
Ozone 1 1 1 1 1 4 1 1