Fitting & Seal Chemical Resistance

Grade Description Degradation
A Excellent (0%-3%)
B Good (4%-15%)
C Fair (16-30%)
D Poor (>30%)
E Dissolves (100%)
Acetal (POM) Brass Buna-N (Nirtile) EPDM 304 Stainless Steel Viton®
Acetic Acid 3N D D C A D B
Boric Acid 4% A A A B A
Chromic Acid 3N D D D C B B
Citronic Acid 3N B D A A B A
Formic Acid 3N A D C A B C
HCI 3N D D D A D A
Phosphoric Acid 3N D D D B D A
Sulfuric Acid <20% D C C B
Sulfuric Acid >20% D C C B
Ammonia 3N D C A A D
Potassium Hydroxide 3N A D B A B B
Sodium Hydroxide <20% A B A B B C
Sodium Hydroxide >20% D D D B C D
Aluminum Chloride 10% D A A B A
Ammonium Chloride 10% B D B A C A
Bleaching Agent 40% D D B A A
Bleaching Agent 100% D D B A A
Calcium Chloride 40% D A A C A
Caustic Soda 10% A D B A B B
Ferric Chloride 10% D D A A D A
Hydrogen Peroxide 3% D D A B A
Magnesium Chloride 30% B D A A D A
Potassium Chloride 40% A D A A B A
Potassium Dichromate 10% A A A B A
Potassium Permanganate 5% A C A B A
Sea Water A D A A C A
Sodium Bisulfate 10% B D B A D A
Sodium Chloride 10% A D A A B A
Sodium Hypochlorite PH 13 D D B B C A
ASTM Fuel A
ASTM Fuel B
ASTM Fuel C
Diesel Fuel A D A D A A
Gasohol (10-15% Methanol)
High-test (Super) Gasoline A A D A A
Kerosene A A A D A A
ASTM Oil #1 D B B D A B
ASTM Oil #2 D B B D A B
ASTM Oil #3 D B B D A B
Brake Fluid (ATE/ATS)
Gear Oil (SAE90)
Hydraulic Fluid B A A D A A
Hydraulic/Water Emulsion
Mineral Oil A A D A A
Motor Oil B A D A
Paraffin Oil A A B D A B
Power Steering Fluid
Skydrol® 500 Oil
Calcium Grease
Sodium Grease
PTFE Grease
Dioctyl Phthalate (DOP)
Ethylene Chloride A D D B B
Ethylene Glycol/Water 50/50 B B A A B A
Household Cleaner
Naptha
Silage Juice
Perspiration
Tincture of Iodine
Tricresyl Phosphate C D A B A
Acetone A A D A A D
Aniline A D D B A A
Benzene A D D B A
Benzyl Alcohol A D B B A
Butane A A D A A
Butyl Acetate A A D B B S
Butyl Alcohol A A A A A
Carbon Tetrachloride B D D B A
Chlorobenzene D B D D A A
Chloroform A B D D A A
Cyclohexane A A B D A A
Ethanol A A C A A A
Ether A B D C A C
Ethyl Acetate A B D B B D
R12 & R22
Glycerine & Glycol
Heptane A A A D A A
Hexane A A A D A A
Isopropyl Alcohol A B B A
Methanol A A A A A C
Methyl Acetate B D B A D
Methyl Ethyl Ketone C A D A A D
Methyl Glycol
Methylene Chloride B A D D A A
N-Methyl Pyrrolidone
Perchloroethylene B C D B A
Petroleum B A D A A
Pyridine B B D B A D
Tetrachloroethylene A D D A
Tetrahydrofuran A D D A D
Toluene C A D D A C
Trichloroethylene D D D B A
Turpentine A D D A A
Xylene A A D D B B