POSTCOATING CHEMICAL RESISTANCE GUIDE

Postcoatings will withstand exposure to many corrosive atmospheres with the exception of strong alkalies, strong oxidizers, wet bromine, and chlorine and fluorine in concentrations greater than 100 ppm (parts per million).  Because the resistance is dependent upon the application, environment, coil construction, and other factors, please contact us for specific recommendations.  The postcoatings are resistant to the following chemicals:

Acetates all

Citric acid

Nitric acid (dilute)

Acetic acid

Coke oven gas

Nitrides all

Acetone

Esters all

Nitrobenaene

Acetylene

Ethers all

Nitrogen fertilizers

Acrylonitrile

Alcohols all

Ethylene oxide  

Fatty acids

Oils, mineral and vegetable all

Aldehydes all

Fluosilicic acid

Oxalic acid

Alum

Formaldehyde

Oxygen

Amines all

Formic acid

Phenol

Ammonia

Freon

Phosphoric acid

Ammonium hydroxide

Fuels all

Propane

Ammonium nitrate

Gases inert

Salicylic acid

Aniline

Gases manufactured

Silicic acid

Benzoic acid

Gases natural

Steam vapor

Benzol

Glycerine

Stearic acid

Boric acid

Glycols all

Sulfate liquors

Brine

Hydrocarbons all

Sulfonic acid

Butane

Hydrochloric acid

Sulfur dioxide

Carbolic acid

Hydrogen

Sulfuric acid

Carbonates all

Hydrogen sulfide

Sulfurous acid

Carbon dioxide

Iodides all

Surfactants

Carbonic acid

Ketones all

Tannic acids

Carbon monoxide

Lacquers

Tetrasthyl lead

Carbon tetrachloride

Lactic acid

Toluene

Chlorides all

Maleic acid

Trisodium phosphate

Chlorinated solvents all

Malic acid

Urea

Chlorine less than 100 ppm

Methanol

Saltwater

Chloroform

Methylene chloride

Water

Chromic acid

Naphthalene

Xylene

 

 

 

 Most Postcoatings are NOT resistant to the following chemicals:

Aluminum fluoride

Cadmium cyanide

Hydrogen peroxide

Ammonium fluoride

Calcium hypochlorite

Hypochlorites

Aqua regia

Caustic soda

Nitric acid (conc.)

Bleaching compounds

Chlorine over 100 ppm

Nitrogren oxides

Brass plating solutions

Cyanide plating solutions

Potassium hydroxide

Bromine over 100 ppm

Fluorine over 100 ppm

Sodium fluoride (conc.)

Bronze plating solutions

Hydrofluoric acid (conc.)

Sodium hydroxide (conc.)

  Contact us for details for any of the above applications.

NOTE:  This information is based on research conducted by the postcoating manufacturers and is believed to be accurate.  

However, no guarantee of accuracy can be made and no liability will be assumed by Criterion.