This chemical compatibility chart will help you find out which fluid can be used with which seal. As every aspect of an application may not be known by the supplier, applications remain the responsibility of the user.
A: Excellent – Material not affected
B: Good – Material slightly affected but suitable
C: Fair – Some degree of reaction but suitable
D: Severe effect – Not recommended
X: No data available, refer to the crew at The Metal Company
This chemical compatibility chart will help you find out which fluid can be used with which seal. As every aspect of an application may not be known by the supplier, applications remain the responsibility of the user.
A: Excellent – Material not affected
B: Good – Material slightly affected but suitable C: Fair – Some degree of reaction but suitable
D: Severe effect – Not recommended
X: No data available, refer to the crew at The Metal Company
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Acetic acid 20%
B
A
A
A
C
B
B
A
Acetone 100 %
A
A
A
A
D
D
D
C
Acetylene
A
A
A
A
A
B
B
B
Ammonia dry
C
A
X
X
X
X
X
X
Ammonium chloride 1%
C
A
A
A
A
A
X
A
Ammonium nitrate 10-50%
A
A
A
A
X
A
B
C
Ammonium phosphate 10%
B
C
A
A
D
A
A
B
Ammonium sulfate 10%
B
C
A
A
D
A
A
A
Aniline
A
A
B
A
C
D
D
D
Aqua regia, aqua fortis
D
A
C
A
B
D
D
D
Battery acid
X
A
B
X
A
D
D
C
Benzene
B
A
D
A
A
D
D
D
Boric acid 5%
B
A
A
A
A
A
A
A
Butane
A
A
D
A
A
A
D
D
Butanol
A
A
B
A
A
A
B
A
Calcium Hydroxide ≤ 10°C
B
C
A
A
A
A
A
A
Calcium Hypochlorite
C
D
A
A
A
C
B
D
Carbon dioxide
A
A
A
A
A
A
B
B
Caustic soda ≤ 50%
X
A
A
X
C
A
B
A
Chlorine (dry)
A
B
D
A
A
B
X
D
Citric acid 5%
B
A
A
A
A
A
A
A
Compressed air > 5mg/m3
A
A
D
X
A
D
A
D
Compressed air < 5mg/m3
A
A
B
X
A
B
A
D
Copper chloride
D
D
A
A
A
A
A
A
Copper nitrate
A
A
B
A
A
A
D
X
Copper sulfate 10%
B
A
A
A
A
A
A
B
Engine oil
X
A
D
A
D
A
D
D
Ethane
A
A
D
A
A
A
D
D
Ethylene glycol
B
A
D
A
A
A
A
A
Ethylene Oxide
B
A
C
A
D
D
D
D
Ferric chloride, watery
D
D
A
A
A
A
B
A
Ferric sulfate
B
C
A
A
A
A
B
A
Formaldehyde
C
A
B
A
D
C
B
B
Formic acid
B
C
A
A
D
B
B
A
Gas oil
X
A
X
A
A
A
D
D
Gasoline
A
A
D
A
A
A
D
D
Gear oil
X
A
A
A
D
C
X
X
Hexane
A
A
D
A
A
A
D
D
Hydrochloric acid 100%
D
D
A
A
A
C
D
C
Hydrogen fluoride
D
D
X
A
X
X
X
X
Hydrogen peroxide 10%
B
A
A
A
A
B
A
B
Kerosene
A
A
D
A
A
A
D
D
Linseed oil
B
A
C
A
A
A
A
D
Lubricating oils
A
A
D
A
A
B
D
D
Machine oil
X
A
D
A
D
A
D
D
Magnesium chloride ≤20%
D
A
A
A
A
A
A
A
Magnesium hydroxide 100°C
B
C
A
A
A
B
X
B
Magnesium sulfate <40%
A
A
A
A
A
A
A
A
Methane
A
A
D
A
A
A
D
D
Methanol
A
A
A
A
D
A
A
A
Mineral oil
A
A
D
A
X
A
B
D
Naphtha
A
A
D
B
A
C
D
D
Naphthalene
A
A
D
A
A
D
D
D
Nickel chloride 10-30%
D
C
A
A
A
A
A
A
Nitrogen N2
A
A
A
A
A
A
A
A
Nitric acid ≤20%
A
A
B
A
A
D
D
D
Phosphoric acid
D
A
X
A
A
D
B
B
Potassium chloride
B
A
A
A
A
A
A
A
Potassium hydroxide ≤ 50°C
B
C
A
A
D
B
C
B
Potassium sulfate 10%
B
A
A
A
A
A
A
A
Propane (liquefied)
A
A
D
A
A
A
D
D
Prussic acid
X
C
A
X
A
B
C
B
Sea water
C
A
A
A
A
A
A
A
Sodium bicarbonate
A
A
A
A
A
A
A
A
Sodium chloride 5%
B
A
A
A
A
A
A
A
Sodium nitrate ≤ 40%
B
A
A
A
C
B
D
B
Sodium phosphate
B
C
A
A
A
A
A
A
Sodium sulfate 10%
B
A
A
A
A
X
A
X
Sulfuric acid 10% 60°C
D
D
B
A
A
D
D
C
Sulfuric acid, smoking
D
D
X
A
X
X
X
X
Sulfuric acid 100%. moist
C
C
X
A
X
D
D
C
Sulphur dioxide (dry)
X
C
A
X
A
D
B
C
Tannin
B
A
A
A
A
A
B
A
Tartaric Acid 10% 100°C
C
A
B
A
A
A
A
A
Toluol 20°C
X
A
A
X
C
X
X
X
Trichloroethylene
B
C
D
A
A
C
D
D
Turpentine
A
C
D
A
A
A
D
D
Water ≤ 100°C
A
A
A
A
B
A
A
A
Water, deionised
A
A
A
A
A
A
A
A
Water, distilled
A
A
A
A
A
A
A
A
Zinc chloride
B
A
A
A
A
A
X
A
Zinc sulfate 10%
B
A
A
A
A
A
A
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Acetic acid 20%
B
A
A
A
C
B
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Acetone 100 %
A
A
A
A
D
D
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Acetylene
A
A
A
A
A
B
B
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonia dry
C
A
X
X
X
X
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonium chloride 1%
C
A
A
A
A
A
X
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonium nitrate 10-50%
A
A
A
A
X
A
B
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonium phosphate 10%
B
C
A
A
D
A
A
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ammonium sulfate 10%
B
C
A
A
D
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Aniline
A
A
B
A
C
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Aqua regia, aqua fortis
D
A
C
A
B
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Battery acid
X
A
B
X
A
D
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Benzene
B
A
D
A
A
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Boric acid 5%
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Butane
A
A
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Butanol
A
A
B
A
A
A
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Calcium Hydroxide ≤ 10°C
B
C
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Calcium Hypochlorite
C
D
A
A
A
C
B
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Carbon dioxide
A
A
A
A
A
A
B
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Caustic soda ≤ 50%
X
A
A
X
C
A
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Chlorine (dry)
A
B
D
A
A
B
X
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Citric acid 5%
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Compressed air > 5mg/m3
A
A
D
X
A
D
A
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Compressed air < 5mg/m3
A
A
B
X
A
B
A
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Copper chloride
D
D
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Copper nitrate
A
A
B
A
A
A
D
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Copper sulfate 10%
B
A
A
A
A
A
A
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Engine oil
X
A
D
A
D
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ethane
A
A
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ethylene glycol
B
A
D
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ethylene Oxide
B
A
C
A
D
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ferric chloride, watery
D
D
A
A
A
A
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Ferric sulfate
B
C
A
A
A
A
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Formaldehyde
C
A
B
A
D
C
B
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Formic acid
B
C
A
A
D
B
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Gas oil
X
A
X
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Gasoline
A
A
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Gear oil
X
A
A
A
D
C
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Hexane
A
A
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Hydrochloric acid 100%
D
D
A
A
A
C
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Hydrogen fluoride
D
D
X
A
X
X
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Hydrogen peroxide 10%
B
A
A
A
A
B
A
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Kerosene
A
A
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Linseed oil
B
A
C
A
A
A
A
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Lubricating oils
A
A
D
A
A
B
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Machine oil
X
A
D
A
D
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Magnesium chloride ≤20%
D
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Magnesium hydroxide 100°C
B
C
A
A
A
B
X
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Magnesium sulfate <40%
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Methane
A
A
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Methanol
A
A
A
A
D
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Mineral oil
A
A
D
A
X
A
B
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Naphtha
A
A
D
B
A
C
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Naphthalene
A
A
D
A
A
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Nickel chloride 10-30%
D
C
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Nitrogen N2
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Nitric acid ≤20%
A
A
B
A
A
D
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Phosphoric acid
D
A
X
A
A
D
B
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Potassium chloride
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Potassium hydroxide ≤ 50°C
B
C
A
A
D
B
C
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Potassium sulfate 10%
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Propane (liquefied)
A
A
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Prussic acid
X
C
A
X
A
B
C
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sea water
C
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium bicarbonate
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium chloride 5%
B
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium nitrate ≤ 40%
B
A
A
A
C
B
D
B
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium phosphate
B
C
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sodium sulfate 10%
B
A
A
A
A
X
A
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sulfuric acid 10% 60°C
D
D
B
A
A
D
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sulfuric acid, smoking
D
D
X
A
X
X
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sulfuric acid 100%. moist
C
C
X
A
X
D
D
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Sulphur dioxide (dry)
X
C
A
X
A
D
B
C
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Tannin
B
A
A
A
A
A
B
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Tartaric Acid 10% 100°C
C
A
B
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Toluol 20°C
X
A
A
X
C
X
X
X
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Trichloroethylene
B
C
D
A
A
C
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Turpentine
A
C
D
A
A
A
D
D
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Water ≤ 100°C
A
A
A
A
B
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Water, deionised
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Water, distilled
A
A
A
A
A
A
A
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Zinc chloride
B
A
A
A
A
A
X
A
FLUID
304L STAINLESS
316L STAINLESS
EPDM
PTFE
FKM
NBR
Silicone
Insertion Rubber
Zinc sulfate 10%
B
A
A
A
A
A
A
B