Chemical Compatibility Charts

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Below is list of common chemicals encountered in industrial fluid sealing applications and a qualitative rating on which elastomer (rubber) compounds are appropriate for use.  Several variables (most notably: temperature) can have an effect on the rating and so this table should be used as a guideline only.

1 = Good

2 = Fair

3 = Poor

4 = Not suitable


Chemical

Natural

(NR/IR)

Neoprene

(CR)

Nitrile

(NBR)

Butyl

(CIIR)

EPDM

(EPDM)

Buna-S

(SBR)

Silicone

(SI)

Hypalon

(CSM)

Viton

(FKM)

Abietic Acid
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
Acetaldehyde
 3
 3
 3
 2
 2
 3
 2
 3
 4
Acetamide
 4
 1
 1
 2
 1
 4
 2
 2
 3
Acetanilide
1
 3
 1
 1
 1
 2
 1
 3
Acetic Acid, 30%
 2
 N/A
 N/A
 N/A
 1
 N/A
 N/A
 N/A
 N/A
Acetic Acid, 5%
 2
 1
 2
 1
 1
 2
 1
 1
 1
Acetic Acid, Glacial
 3
 4
 2
 2
 1
 2
 1
 3
 2

Acetic Acid,

Hot & High Pressure


4
 4
 4
 3
 4
 3
 3
 4
Acetic Anhydride
 3
 2
 3
 2
 2
 2
 3
 3
 4
Acetoacetic Acid
1
 3
 1
 1
 1
 2
 1
 3
Acetone
 3
 4
 4
 1
 1
 4
 4
 3
 4
Acetone Cyanohydrin
1
 3
 1
 1
 1
 2
 1
 3
Acetonitrile
N/A
 3
 N/A
 1
 N/A
 N/A
 N/A
 1
Acetophenetidine
4
 2
 4
 4
 4
 N/A
 4
 1
Acetophenone
4
 4
 2
 1
 4
 4
 4
 4
Acetotoluidide
4
 2
 4
 4
 4
 N/A
 4
 1
Acetyl Acetone
4
 4
 1
 1
 4
 4
 4
 4
Acetyl Bromide
 N/A
 4
 4
 1
 1
 4
 4
 4
 1
Acetyl Chloride
 4
 4
 4
 4
 4
 4
 4
 4
 1
Acetylene
 2
 2
 1
 1
 1
 2
 2
 2
 1
Acetylene Tetrabromide
2
 4
 1
 1
 4
 N/A
 N/A
 1
Acetylene Tetrachloride
2
 4
 1
 1
 4
 N/A
 N/A
 1
Acetylsalicylic Acid
4
 2
 4
 4
 4
 N/A
 4
 1
Acids, Non-Organic
N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
Acids, Organic
N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
Aconitic Acid
N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
Acridine
N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
 N/A
Acrolein
1
 3
 1
 1
 1
 2
 1
 3
Acrylic Acid
4
 2
 4
 4
 4
 N/A
 4
 1
Acrylonitrile
 2
 4
 4
 4
 4
 3
 4
 3
 3
Adipic Acid
 1
 N/A
 1
 N/A
 2
 N/A
 N/A
 N/A
 N/A
Aero Lubriplate
1
 1
 4
 4
 2
 2
 1
 1
Aero Shell 17 Grease
2
 1
 4
 4
 4
 2
 1
 1
Aero Shell 750
4
 2
 4
 4
 4
 4
 4
 1
Aero Shell 7A Grease
2
 2
 4
 4
 4
 2
 1
 1
Aero Shell IAC
2
 1
 4
 4
 4
 2
 1
 1
Aerosafe 2300
4
 4
 2
 1
 4
 3
 4
 4
Aerosafe 2300W
4
 4
 2
 1
 4
 3
 4
 4
Aerozene 50 (50% Hydrazine 50% UDMH)
4
 3
 1
 1
 4
 4
 4
 4
Air, Below 200F
1
 2
 1
 1
 2
 1
 1
 1
Air, 200-300F
2
 3
 2
 2
 4
 1
 2
 1
Air, 300-400F
4
 4
 4
 4
 4
 1
 4
 1
Air, 400-500F
4
 4
 4
 4
 4
 2
 4
 3
Aliphatic Dicarboxlic Acid
4
 2
 4
 4
 4
 N/A
 4
 1
Alkanes (Paraffin Hydrocarbons)
2
 1
 4
 4
 4
 2
 2
 1
Alkanesulfonic Acid
2
 1
 4
 4
 4
 2
 2
 1
Alkazene
4
 4
 4
 4
 4
 4
 4
 2
Alkenes (Olefin Hydrocarbons)
4
 2
 4
 4
 4
 N/A
 4
 1
Alkyl Acetone
1
 3
 1
 1
 1
 2
 1
 3
Alkyl Alcohol
2
 1
 4
 4
 4
 2
 2
 1
Alkyl Amine
2
 1
 4
 4
 4
 2
 2
 1
Alkyl Aryl Sulfonates
2
 1
 4
 4
 4
 2
 2
 1
Alkyl Aryl Sulfonics
2
 1
 4
 4
 4
 2
 2
 1
Alkyl Benzene
4
 2
 4
 4
 4
 N/A
 4
 1
Alkyl Chloride
4
 2
 4
 4
 4
 N/A
 4
 1
Alkyl Sulfide
4
 2
 4
 4
 4
 N/A
 4
 1
Alkylnaphthalene Sulfonic Acid
2
 1
 4
 4
 4
 2
 2
 1
Allyl Chloride
1
 2
 N/A
 4
 N/A
 N/A
 N/A
 1
Allylidene Diacetate
1
 3
 1
 1
 1
 2
 1
 3
Alpha Picoline 1 3 1 1 1 2 1 3
Aluminum Acetate 2 2 1 1 2 4 4 4
Aluminum Bromide 1 1 1 1 1 1 1 1
Aluminum Chlorate 1 3 1 1 1 2 1 3
Aluminum Chloride 1 1 1 1 1 2 1 1
Aluminum Ethylate N/A N/A N/A N/A N/A N/A N/A N/A
Aluminum Fluoride 1 1 1 1 1 2 1 1
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