Epoxy - Chemical Resistance

Chemical resistance of Epoxy to common products as Acetic acid, Alcohol, Diesel oil and more

Epoxy (polyepoxide) is an epoxide polymer that cures when mixed with a catalyzing agent or "hardener". Epoxy resin have an excellent electrical, thermal, and chemical resistance. It is common to increase the strength of epoxy with fibrous reinforcement or mineral fillers. The variety of combinations of epoxy resins and reinforcements provides a wide latitude in properties obtainable in molded parts.

The table below can be used as an indication of epoxy resistance to chemical compounds. Always check the chemical resistance with the epoxy manufacturer.

Chemical ProductEpoxy Resistance to Chemical Product
Acetic Acid (20%) Excellent
Acetone Not Recommended
Acetylene Excellent
Alcohol - Ethyl Excellent (temperature < 120oF, 50oC)
Alcohol - Isopropyl Excellent
Alcohol - Methyl Good (temperature < 72oF, 22oC)
Aluminum Chloride Excellent (temperature < 72oF, 22oC)
Aluminum Fluoride Good (temperature < 72oF, 22oC)
Aluminum Hydroxide Good (temperature < 72oF, 22oC)
Aluminum Sulfate Excellent (temperature < 72oF, 22oC)
Amines Excellent (temperature < 72oF, 22oC)
Ammonia - Liquid Excellent (temperature < 72oF, 22oC)
Ammonia 10% Excellent (temperature < 72oF, 22oC)
Ammonium Carbonate Excellent (temperature < 72oF, 22oC)
Ammonium Chloride Excellent (temperature < 72oF, 22oC)
Ammonium Hydroxide Excellent (temperature < 72oF, 22oC)
Ammonium Nitrate Excellent (temperature < 72oF, 22oC)
Ammonium Phosphate Excellent (temperature < 72oF, 22oC)
Ammonium Sulfate Excellent (temperature < 72oF, 22oC)
Amyl acetate Excellent (temperature < 72oF, 22oC)
Aniline Fair (temperature < 72oF, 22oC)
Barium Carbonate Excellent (temperature < 72oF, 22oC)
Barium Chloride Excellent (temperature < 72oF, 22oC)
Barium Hydroxide Excellent (temperature < 72oF, 22oC)
Barium Sulfate Fair (temperature < 72oF, 22oC)
Barium Sulfide Good (temperature < 72oF, 22oC)
Beer Excellent (temperature < 72oF, 22oC)
Benzol Excellent (temperature < 72oF, 22oC)
Borax Excellent (temperature < 72oF, 22oC)
Boric acid Excellent (temperature < 72oF, 22oC)
Bromine Not Recommended
Butadiene gas Excellent (temperature < 72oF, 22oC)
Butane gas Excellent (temperature < 72oF, 22oC)
Butyl acetate Good (temperature < 72oF, 22oC)
Butaric Acid Fair (temperature < 72oF, 22oC)
Calcium Bisulfite Excellent (temperature < 72oF, 22oC)
Calcium Carbonate Excellent (temperature < 72oF, 22oC)
Calcium Chloride Excellent (temperature < 72oF, 22oC)
Calcium Hydroxide Excellent (temperature < 72oF, 22oC)
Calcium Hypochlorite Excellent (temperature < 72oF, 22oC)
Calcium Sulfate Excellent (temperature < 72oF, 22oC)
Carbon dioxide gas Excellent (temperature < 72oF, 22oC)
Carbon Tetrachloride Excellent (temperature < 72oF, 22oC)
Carbonic Acid Good (temperature < 72oF, 22oC)
Citric Acid Excellent (temperature < 72oF, 22oC)
Copper Chloride Excellent 
Copper Nitrate Excellent (temperature < 72oF, 22oC)
Dichloroethane Good (temperature < 120oF, 50oC)
Diesel Fuel Excellent (temperature < 72oF, 22oC)
Ethyl acetate Fair (temperature < 72oF, 22oC)
Ethyl chloride Excellent (temperature < 72oF, 22oC)
Ethylene glycol Fair (temperature < 72oF, 22oC)
Fatty Acids Excellent (temperature < 72oF, 22oC)
Ferric Chloride Excellent (temperature < 72oF, 22oC)
Ferric Sulfate Excellent (temperature < 72oF, 22oC)
Ferrous Chloride Excellent (temperature < 72oF, 22oC)
Ferrous Sulfate Excellent (temperature < 72oF, 22oC)
Fluorine gas Note Recommended
Fluosilicic acid Fair
Formaldehyde, 40% Excellent (temperature < 72oF, 22oC)
Formic Acid Fair (temperature < 72oF, 22oC)
R-12 dichlorodifluoromethane Excellent 
Gasoline Excellent 
Glucose Good
Glycerine Excellent 
Heptane Excellent 
Hexane Good
Hydraulic Fluid Excellent 
Hydrobromic Acid, 100% Not Recommended
Hydrochloric acid, 20% Good (temperature < 72oF, 22oC)
Hydrocyanic Acid Excellent
Hydrofluoric Acid, 75% Good (temperature < 72oF, 22oC)
Hydrogen Peroxide, 10% Fair (temperature < 72oF, 22oC)
Hydrogen Sulfide Excellent 
Jet Fuel Excellent 
Kerosene Excellent
Lactic Acid Good (temperature < 72oF, 22oC)
Lead acetate Excellent 
Magnesium Carbonate Excellent 
Magnesium Chloride Excellent 
Magnesium Hydroxide Excellent
Magnesium Nitrate Excellent 
Magnesium Sulfate Excellent 
Maleic Acid Excellent 
Mercury Excellent 
Methyl Ethyl Ketone Fair (temperature < 72oF, 22oC)
Naphtha Excellent
Naphthalene Excellent
Nickel Chloride Excellent 
Nickel Sulfate Excellent
Nitric Acid Not Recommended
Oil - Castor Excellent 
Oleic acid Excellent 
Oxalic Acid Excellent
Phenol Good
Phosphoric Acid Good
Picric Acid Excellent
Potassium Bicarbonate Excellent 
Potassium Bromide Excellent 
Potassium Carbonate Excellent 
Potassium Chloride Excellent 
Potassium Dichromate Fair
Potassium Hydroxide Excellent 
Potassium Nitrate Excellent 
Potassium Sulfate Excellent
Propane, liquid Excellent
Silver Nitrate Excellent
Soaps Excellent 
Sodium Acetate Excellent 
Sodium Bicarbonate Excellent 
Sodium Bisulfate Excellent 
Sodium Carbonate Fair (temperature < 72oF, 22oC)
Sodium Chlorate Excellent 
Sodium Chloride Excellent 
Sodium Cyanide Excellent 
Sodium Fluoride Excellent 
Sodium Hydroxide, 50% Good (temperature < 120oF, 50oC)
Sodium Hypochlorite, 100% Not Recommended
Sodium Nitrate Excellent
Sodium Silicate Excellent 
Sodium Sulfate Excellent 
Sodium Sulfite Excellent
Sodium Thiosulfate Excellent 
Stannic Chloride Excellent 
Stearic Acid Good
Sulfuric Acid, 75-100% Fair (temperature < 72oF, 22oC)
Sulfur Dioxide Excellent (temperature < 72oF, 22oC)
Tannic Acid Excellent 
Tartaric Acid Excellent 
Toluene Good (temperature < 72oF, 22oC)
Turpentine Good
Urine Excellent 
Vinegar Excellent 
Water - Distilled Excellent 
Water - Fresh Excellent 
Water - Sea, Salt Excellent 
Xylene Excellent 
Zinc Chloride Excellent 

Related Topics

  • Corrosion - Corrosion in piping systems - caused by thermodynamic and electrochemical processes - corrosion problems and methods of protection and prevention
  • Material Properties - Material properties for gases, fluids and solids - densities, specific heats, viscosities and more

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