PEEK
The chemical resistance of any polymer is defined largely by the chemical structure of the material and the strength of the weakest link in this structure.

This linear aromatic polymer is semi-crystalline and is widely regarded as the highest performance thermoplastic material currently available. PEEK™ polymer is widely regarded as a material with superb chemical resistance.

These tables provide general guidance for use with PEEK™ polymer and compounds. It has been shown that the performance of a component can depend on factors such as residual molding stresses and crystallinity level. Application-specific chemical resistance testing is essential for all components.

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A B C D E F G H I L M N O P S T U V W Y Z

		Chemical Resistance 20oC 60oC 100oC Acetaldehyde NR NR R Acetic acid (10%) R R R Acetic acid (glac./anh.) R R NR Acetic anhydride ND ND ND Aceto-acetic ester ND ND ND Acetone R R R Other ketones R R R Acetonitrile ND ND ND Acetylene R R R Acetyl salicylic acid ND ND ND Acid fumes R R R Alcohols R R R Aliphatic esters R R R Alkyl chlorides ND ND ND Alum R R R Aluminium chloride R R R Aluminium sulphate R R R Ammonia, anhydrous R R R Ammonia, aqueous R R R Ammonium chloride R R R Amyl acetate R R R Aniline R R R Antimony trichloride R R R Aqua regia R R ND Aromatic solvents R R R Ascorbic acid ND BD ND Beer R R R Benzaldehyde ND ND ND Benzene R R R Benzoic acid R R R Benzoyl peroxide ND ND ND Boric acid R R R Brines, saturated R R R Bromide (K) solution R R R Bromine NR NR NR Bromine liquid, tech. NR NR NR Bromine water, saturated aqueous R R R Butyl acetate ND ND ND Calcium chloride R R R Carbon disulphide R R R Carbonic acid R R R Carbon tetrachloride R R R Caustic soda & potash R R R Cellulose paint ND ND ND Chlorates of Na, K, Ba R R R Chlorine, dry R R ND Chlorine, wet R R R Chlorides of Na, K, Ba R R R Chloroacetic acid R R R Chlorobenzene R R R Chloroform R R R Chlorosulphonic acid R ND ND Chromic acid (80%) R ND ND Citric acid R R R Copper salts (most) R R R Cresylic acids (50%) R R ND Cyclohexane R R R Detergents, synthetic R R R Emulsifiers, concentrated R R R Esters ND ND ND Ether R R R Fatty acids (>C6) R R R Ferric chloride R R R Ferrous sulphate R R R Fluorinated refrigerants R R R Fluorine, dry R R R Flourine, wet ND ND ND Fluorosilic acid ND ND ND Formaldehyde (40%) R R R Formic acid R R R Fruit juices R R R Gelatine R R R Glycerine R R R Glycols R R R Glycol, ethylene R R R Glycolic acid ND ND ND Hexamethylene diamine ND ND ND Hexamine R R R Hydrazine R R Hydrobromic acid (50%) NDD ND ND Hydrochloric acid (10%) R R R Hydrochloric acid (conc.) R R ND Hydrocyanic acid R R R Hydrofluoric acid (40%) ND ND ND Hydrofluoric acid (75%) ND ND ND Hydrogen peroxide (30%) R R R Hydrogen peroxide (30 - 90%) R R Hydrogen sulphide R R R Hypochlorites RR ND Hypochlorites (Na 12-14%) NR NR NR Iso-butyl-acetate ND ND ND Lactic acid (90%) R R R Lead acetate R R R Lead perchlorate NDD ND Lime (CaO) R R R Maleic acid R R R Manganate, potassium (K) RR R R Meat juices R R R Mercuric chloride R R R Mercury R R R Methanol R R Methylene chloride NDD ND ND Milk products R R R Moist air R R R Molasses R R Monoethanolamine ND ND ND Naptha R R R Napthalene RR R R Nickel salts R R R Nitrates of Na, K and NH3 R R R Nitric acid (<25%) R R R Nitric acid (50%) R R R Nitric acid (90%) NR NR NR Nitric acid (fuming) NR NR NR Nitrite (Na) R R R Nitrobenzene ND ND ND Oils, diesel R R R Oils, essential R R R Oils, lubricating + aromatic additives R R R Oils, mineral R R R Oils, vegetable and animal R R R Oxalic acid R R R Ozone R R R Paraffin wax R R Perchloric acid RR R R Petroleum spirits ND ND ND Phenol R R ND Phosphoric acid (20%) R R R Phosphoric acid (50%) R R R Phosphoric acid (95%) R R R Phosphorous chlorides R R Phosphorous pentoxide R R R Phthalic acid RR R R Picric acid R R R Pyridine R R Salicyl aldehyde ND ND ND Sea water R R R Silicic acid RR R R Silicone fluids R R R Silver nitrate R R R Sodium carbonate R R R Sodium peroxide R R R Sodium silicate R R Sodium sulphide RR R R Stannic chloride R R R Starch R R R Sugar, syrups & jams R R Sulphamic acid ND ND ND Sulphates (Na, K, Mg, Ca) R R R Sulphites R R R Sulphonic acids ND ND ND Sulphur RR R Sulphur dioxide, dry R R R Sulphur dioxide, wet R R R Sulphur dioxide (96%) R R ND Sulphur trioxide R R R Sulphuric acid (<50%) RR ND Sulphuric acid (70%) R R R Sulphuric acid (95%) NR NR NR Sulphuric acid, fuming NR NR NR Sulphur chlorides RR R R Tallow R R R Tannic acid (10%) R R R Tartaric acid R R Trichlorethylene RR R R Urea (30%) R R R Vinegar R R R Water, distilled. R R R Water, soft R R R Water, hard R R R Wetting agents (<5%) R R R Yeast R R R Zinc chloride R R R

 

The information in the Zeus eNewsletter, website, catalog, and other sources present and discuss generally accepted properties for non-pigmented virgin polymer resins from which ZEUS fabricates its line of extruded products. Actual properties may change due to processing method, resin grade, extruded dimensions, and other variables. It is the end user's responsibility to fully evaluate and test the fitness of the product for their specific application. Additional technical support is available by contacting a Zeus technical account manager at: (toll free) 1-866-272-4118 or 1-803-268-9500.

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