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Chemicals – S

O-Ring Fluid Compatibility Guide – S’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
Saccharin
Solution
1
Sal
Ammoniac
1 1 1 1 1 1 2 1
Salicylic
Acid
1 1 1 1 1 2 1
Salt
Water
1 1 1 2 1 1 1 1
SANTOSAFE
300
1 1 1 1 3 4 1 1
Sebacic
Acid
1
sec-Butyl
Alcohol (SBA)
1
Selenic
Acid
1
Selenous
Acid
1
Sewage 1 2 1 2 1 1 1 1
SHELL
TELLUS 27 (Petro Base)
1 1 1 1 4 1 4 1
SHELL
UMF (5% Aromatic)
1 1 1 1 4 1 4 1
Shellac 1
Silane 1
Silicate
Esters
1 1 1 1 4 2 4 1
Silicon
Tetrachloride
2
Silicon
Tetrafluoride
2
Silicone
Oils
1 1 1 1 1 1 3 1
Silver
Bromide
1
Silver
Chloride
1
Silver
Cyanide
1
Silver
Nitrate
1 1 1 1 1 2 1 1
Silver
Oxide
1
Silver
Sulfate
1
SINCLAIR
OPALINE CX-EP LUBE
1 1 1 1 4 1 4 2
SKYDROL
500
1 4 1 4 1 4 3 3
SKYDROL
7000
1 2 1 2 1 4 3 3
Soap
Solutions
1 1 1 2 1 1 1 1
SOCONY
PD959B VACUUM
1 1 1 1 4 1 4 1
Soda
Ash
1 1 1 1 1 1 1 1
Sodium
Abietate
1
Sodium
Acetate
1 4 2 4 1 2 4 4
Sodium
Aluminate
1
Sodium
Antimonate
1
Sodium
Arsenate
1
Sodium
Arsenite
1
Sodium
Benzoate
1
Sodium
Bicarbonate
1 1 1 1 1 1 1 1
Sodium
Bifluoride
1
Sodium
Bisulfate
1 1 1 1 1 1 1 1
Sodium
Bisulfite
1 1 1 1 1 1 1 1
Sodium
Bitartrate
1
Sodium
Borate
1 1 1 1 1 1 1 1
Sodium
Bromate
1
Sodium
Bromide
1
Sodium
Chlorate
1
Sodium
Chloride
1 1 1 1 1 1 1 1
Sodium
Chlorite
1
Sodium
Chloroacetate
1
Sodium
Chromate
1
Sodium
Citrate
1
Sodium
Cyanate
1
Sodium
Cyanide
1 2 1 2 1 1 1 1
Sodium
Diacetate
1
Sodium
Dichromate
1
Sodium
Ethylate
1
Sodium
Ferricyanide
1
Sodium
Ferrocyanide
1
Sodium
Fluoride
1
Sodium
Fluorosilicate
1
Sodium
Glutamate
1
Sodium
Hydride
1
Sodium
Hydrosulfide
1
Sodium
Hydroxide
1 2 1 3 1 2 2 2
Sodium
Hypochlorite
1 1 1 1 2 2 2 2
Sodium
Hypophosphite
1
Sodium
Iodide
1
Sodium
Lactate
1
Sodium
Metaphosphate
1 1 1 1 1 1 1
Sodium
Metasilicate
1
Sodium
Methylate
1
Sodium
Nitrate
1 1 1 1 1 2 4
Sodium
Oleate
1
Sodium
Orthosilicate
1
Sodium
Oxalate
1
Sodium
Perborate
1 1 1 1 1 2 2 1
Sodium
Percarbonate
1
Sodium
Perchlorate
1
Sodium
Peroxide
1 1 1 1 1 2 4 1
Sodium
Persulfate
1
Sodium
Phenate
1
Sodium
Phosphate, Dibasic
1 1 1 1 1 1 4
Sodium
Plumbite
1
Sodium
Pyrophosphate
1
Sodium
Salicylate
1
Sodium
Salts
1 1 1 1 1 1 1 1
Sodium
Sesquisilicate
1
Sodium
Silicate
1 1 1 1 1 1
Sodium
Stannate
1
Sodium
Stearate
Sodium
Sulfate Decahydrate
1 1 1 1 2 4 1
Sodium
Sulfate, Anhydrous
1 1 1 1 1 1 1
Sodium
Sulfide
1
Sodium
Sulfite
1 1 1 1 1 1 1 1
Sodium
Tartrate
1
Sodium
Tetrasulfide
1
Sodium
Thiocyanate
1
Sodium
Thiosulfate
1 1 1 1 2 1 1
Sodium
Trichloroacetate
1
Sodium
Tripolyphosphate
1 2 1 2 1 4
Sodium,
Molten
4
SOLVASOL
1, 2 & 3
1 1 4 1 4 1
Sorbitol 1
Sour
Crude Oil
1 1 1 4 3 4 4
Sour
Natural Gas
1 1 1 4 3 4 4
Soybean
Oil
1 1 1 1 3 1 1 1
SR6
FUEL
1 1 1 1 4 2 4 1
Standard
Clean 1 (SC – 1)
1
Standard
Clean 2 (SC – 2)
1 4 4
Stannic
Chloride
1 1 1 1 1 1 2 1
Stannous
Bromide
1
Stannous
Chloride
1 1 1 1 1 1 2 1
Stannous
Fluoride
1
Stannous
Sulfate
1
STAUFFER
7700
1 1 3 1 4 2 4 2
Steam
< 149 C/300 F
1 2 2 2 1 4 3 4
Steam
> 149 C/300 F
2 3 3 4 4 4 4 4
Stearic
Acid
1 2 1 2 2 2 2
Stoddard
Solvent (ASTM D-484-52)
1 1 2 1 4 1 4 1
Strontium
Acetate
1
Strontium
Carbonate
1
Strontium
Chloride
1
Strontium
Hydroxide
1
Strontium
Nitrate
1
Styrene,
Monomer
1 1 4 1 4 4 4 3
Succinaldehyde 1
Succinic
Acid
1
Sucrose
Solution
1 1 1 1 1 1 1
Sulfamic
Acid
1
Sulfanilic
Acid
1
Sulfite
Liquors
1 1 1 2 2 4 2
Sulfolane 1 2 1 2 1 2
Sulfur
Chloride
1 1 1 1 4 4 3 1
Sulfur
Dioxide
1 2 2 3 1 4 2 2
Sulfur
Hexafluoride
2 3 3 3 1 2 2 2
Sulfur
Tetrafluoride
2
Sulfur
Trioxide, Dry
1 1 2 1 2 4 2 2
Sulfur,
Molten
1 1 1 1 3 4 3 1
Sulfuric
Acid (20% Oleum)
1 1 1 1 2 1 1
Sulfuric
Acid (96%)
1 1 4 1 4 4 4 4
Sulfurous
Acid
1 1 1 3 2 2 4
SUNOCO
SAE 10
1 1 1 1 4 1 4 1
SUPERSHELL
Gasoline
1 1 3 1 4 1 4 2
SWANFINCH
EP Lubricant
1 1 2 1 4 1 4 1
sym-Diphenylethane 1