Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Organic Acids

Acetic acid

2

1

3

4

2

Formic acid

2

2

3

4

3

 Lactic Acid

 4

 4

 4

 4

 3

 Maleic acid

 3

3

3

2

3

Oxalic acid

4

4

4

4

4

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Inorganic acids

Chromic acid up to 70%

1

3

1

4

3

Hydrochloric acid up to 37%

3

3

3

4

3

Hydrofluoric acid up to 70%

2

1

2

3

1

Nitric acid 70+ %

?

1

1

2

?

Perchloric acid up to 70%

4

4

4

3

4

 Phosphoric acid 70+ %

4

4

4

4

4

Sulfuric acid 70+ %

1

1

2

4

2

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Alkalis

Ammonium hydroxide up to 70%

1

3

3

4

2

Potassium hydroxide up to 70%

4

4

4

4

4

Sodium hydroxide 70+ %

4

3

4

4

4

Natural Rubber

Nitrile

Neorene

Butyl

PVC

Salt Solutions

Ammonium nitrate

4

4

4

4

4

Calcium hypochlorite

1

3

3

4

4

Ferric chloride

4

4

4

4

4

Mercuric chloride

3

3

3

4

3

Potassium cyanide

4

4

4

4

4

Potassium dichromate

4

4

4

4

4

Potassium permanganate

4

4

4

?

4

Sodium cyanide

4

4

4

4

4

Sodium thiosulfate

4

4

4

4

4

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

 Aromatic hydrocarbons

Benzene

1

1

1

1

1

 Gasoline

1

4

1

1

1

Naphthalene

1

4

1

1

1

Toluene

1

1

1

1

1

Xylene

1

1

1

1

1

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Aliphatic hydrocarbons

Diesel fuel

1

3

2

1

2

Hexanes

1

4

1

1

1

Kerosene

1

4

3

1

3

Naphtha

1

4

2

1

3

Pentane

1

3

1

1

1

Petroleum ether

1

3

1

1

2

Turpentine

1

2

1

1

1

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Halogenated hydrocarbons

Carbon tetrachloride

1

1

1

1

1

Chloroform

1

1

1

1

1

Methylene chloride

1

2

1

1

1

Polychlorinated biphenyls (PCB's)

1

2

4

4

?

Perchloroethylene

1

2

1

1

1

Trichloroethylene

1

1

1

1

1

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Esters

Ethyl acetate

1

1

1

3

1

Butyl acetate

1

1

1

2

1

Methyl acetate

1

1

1

4

1

Isobutyl acrylate

1

1

1

4

1

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Ethers/Glycols

Diethyl ether

1

2

2

1

1

Ethylene glycol

1

2

2

4

1

Isopropyl ether

1

3

2

1

1

Propylene glycol

?

2

3

3

2

Tetrahydrofuran

1

1

1

2

1

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Aldehydes

Acetaldehyde

1

1

1

4

1

Acrolein

1

1

1

4

1

Benzaldehyde

1

1

1

4

1

Butyraldehyde

1

1

1

4

1

Formaldehyde

1

4

2

4

2

Glutaraldehyde

?

?

4

4

2

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Ketones

Acetone

1

1

1

4

1

Diisobutyl ketone

1

1

1

2

1

Methyl ethyl ketone

1

1

1

4

1

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Alcohols

Allyl alcohol

1

4

1

4

1

Butyl alcohol

1

3

3

4

2

Ethyl alcohol

1

3

2

4

1

Isopropyl alcohol

1

4

3

4

2

Methyl alcohol

1

1

1

4

1

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Amines

Aniline

1

1

1

4

1

Ethanolamine

2

4

4

4

3

Ethylamine

1

1

2

4

1

Methylamine

1

4

3

4

2

Triethanolamine

1

4

1

4

1

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Elements

Bromine

1

1

2

1

?

Chlorine aqueous

?

1

1

2

?

Iodine

?

3

1

3

?

Mercury

?

4

4

4

?

Natural Rubber

Nitrile

Neoprene

Butyl

PVC

Miscellaneous

Acetic anhydride

1

1

2

4

1

Acetonitrile

1

1

1

4

1

Acrylamide

1

2

1

3

1

Carbon disulfide

1

1

1

1

1

Cresols

1

2

3

4

?

Cutting fluid

?

3

2

?

2

Dimethyl sulfoxide

1

1

4

4

1

Hydraulic oil

?

3

?

1

2

Hydrazine

2

4

4

4

4

Hydrogen Peroxide

4

4

2

4

3

Lubricating oil

3

4

3

?

?

Malathion

?

3

3

1

?

Nitrobenzene

1

1

1

4

1

Phenol

1

1

3

2

1

Photo solutions

3

4

4

?

3

Picric acid

1

2

2

3

1

Pyridine

1

1

1

4

1