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FEP Chemical Resistance Chart

FEP shares most of PTFE's outstanding chemical resistance but can be melt-processed, making it ideal for tubing, linings, and coatings.

766 chemicals tested 20°C & 50°C data
899
Excellent (A)
4
Good (B)
5
Limited (C)
0
Not Recommended (D)

Resistance by chemical class

Most rows rated A or B
Alcohols and glycols 100 %; Alkalis 100 %; Amines and nitrogen compounds 100 %
Fewest rows rated A or B
Halogenated hydrocarbons 90 %; Vegetable and animal oils, fats, essential oils 100 %; Salts and salt solutions 100 %
All rated rows, by rating
A 99 %, B 0 %, C 1 %, D 0 % (908)

Chemical classes were assigned by this site, not by the source. Mixtures and trade products without a clear class are not counted.

FEP: Resistance by chemical classMineral acids: A 95 %, B 5 %. Organic acids: A 100 %. Alkalis: A 100 %. Salts and salt solutions: A 100 %. Oxidising agents and halogens: A 100 %. Alcohols and glycols: A 100 %. Phenols: A 100 %. Ketones and aldehydes: A 100 %. Esters and ethers: A 100 %. Amines and nitrogen compounds: A 97 %, B 3 %. Aromatic hydrocarbons: A 100 %. Fuels, mineral oils and aliphatic hydrocarbons: A 100 %. Vegetable and animal oils, fats, essential oils: A 100 %. Halogenated hydrocarbons: A 90 %, C 10 %. Foods and beverages: A 100 %.Mineral acids (55)Mineral acids: A 95 % (52)A 95 %Mineral acids: B 5 % (3)BOrganic acids (64)Organic acids: A 100 % (64)A 100 %Alkalis (18)Alkalis: A 100 % (18)A 100 %Salts and salt solutions (197)Salts and salt solutions: A 100 % (197)A 100 %Oxidising agents and halogens (52)Oxidising agents and halogens: A 100 % (52)A 100 %Alcohols and glycols (57)Alcohols and glycols: A 100 % (57)A 100 %Phenols (14)Phenols: A 100 % (14)A 100 %Ketones and aldehydes (33)Ketones and aldehydes: A 100 % (33)A 100 %Esters and ethers (69)Esters and ethers: A 100 % (69)A 100 %Amines and nitrogen compounds (38)Amines and nitrogen compounds: A 97 % (37)A 97 %Amines and nitrogen compounds: B 3 % (1)Aromatic hydrocarbons (14)Aromatic hydrocarbons: A 100 % (14)A 100 %Fuels, mineral oils and aliphatic hydrocarbons (74)Fuels, mineral oils and aliphatic hydrocarbons: A 100 % (74)A 100 %Vegetable and animal oils, fats, essential oils (47)Vegetable and animal oils, fats, essential oils: A 100 % (47)A 100 %Halogenated hydrocarbons (49)Halogenated hydrocarbons: A 90 % (44)A 90 %Halogenated hydrocarbons: C 10 % (5)CFoods and beverages (46)Foods and beverages: A 100 % (46)A 100 %
A very good resistanceB good resistanceC limited resistanceD not resistant
Share of each rating at 20 °C among the source rows of a class. The number in brackets is the number of rated rows; a row is one chemical at one concentration. Classes with fewer than 8 rated rows are left out.
Showing 908 chemicals
Chemical Concentration 20°C 50°C CAS
Hydrogen Fluoride Exhaust Gases
Abgase, fluorwasserstoffhaltig
low concentrationAA—
Carbon Dioxide Exhaust Gases
Abgase, kohlendioxidhaltig
low concentrationAA—
Nitrous Exhaust Gases
Abgase, nitrosehaltig
low concentrationAA—
Hydrochloric Acid Exhaust Gases
Abgase, salzsäurehaltig
any concentrationAA—
Sulfur Dioxide Exhaust Gases
Abgase, schwefeldioxidhaltig
low concentrationAA—
Sulfuric Acid Exhaust Gases
Abgase, schwefelsäurehaltig
any concentrationAA—
Sulfur Trioxide Exhaust Gases
Abgase, schwefeltrioxidhaltig
low concentrationB*–—
Acetaldehyd
40 %A*–75-07-0
Acetaldehyd
technical gradeA*–75-07-0
Acetamide
Acetamid
saturatedAA60-35-5
Aceton
—A*–67-64-1
Acetonitril
—A*–75-05-8
Acetyl Chloride
Acetylchlorid
100 %A*–75-36-5
Acetylen
100 %AA74-86-2
Acetylsalicylic Acid (Aspirin)
Acetylsalicylsäure
100 %AA50-78-2
Acrylnitril
—AA107-13-1
Adipinsäure
saturatedAA124-04-9
Akkusäure
38 %AA7664-93-9
Alanine
Alanin
—AA56-41-7
Allyl Acetate
Allylacetat
100 %A*–591-87-7
Allylalkohol
96 %AA107-18-6
Allyl Chloride
Allylchlorid
100 %A*–107-05-1
Allyl Mustard Oil
Allylsenföl
—A*–57-06-7
Aluminum Hydroxide Acetate
Aluminium(hydroxid)acetat
aqueousAA139-12-8
Aluminum Ammonium Sulfate
Aluminiumammoniumsulfat
saturatedAA7784-26-1
Aluminiumchlorid
10 %AA7784-13-6
Aluminiumchlorid
saturatedAA7784-13-6
Aluminum Fluoride
Aluminiumfluorid
aqueousAA7789-18-1
Aluminiumhydroxid
—A–21645-51-2
Aluminiumnitrat
aqueousAA13473-90-0
Aluminiumoxid
solidAA1344-28-1
Aluminiumsulfat
10 %AA10043-01-3
Aluminiumsulfat
saturatedAA10043-01-3
Ameisensäure
3 %AA64-18-6
Ameisensäure
50 %AA64-18-6
Ameisensäure
98-100 %A*–64-18-6
Glycine
Aminoessigsäure
10 %AA56-40-6
Ammoniumacetat
saturatedAA631-61-8
Ammoniumcarbonat
50 %AA10361-29-2
Ammoniumcarbonat
aqueousAA10361-29-2
Ammoniumchlorid
aqueousAA12125-02-9
Ammoniumchlorid
solidA*–12125-02-9
Ammonium Dihydrogen Phosphate
Ammoniumdihydrogenphosphat
any concentrationAA7722-76-1
Ammonium Iron(II) Sulfate
Ammoniumeisen-(II)-sulfat
—AA7783-85-9
Ammonium Iron(III) Sulfate
Ammoniumeisen-(III)-sulfat
saturatedAA7783-83-7
Ammoniumfluorid
aqueousAA12125-01-8
Ammoniumfluorid
saturatedAA12125-01-8
Ammonium Glycolate
Ammoniumglycolat
—AA35249-89-9
Ammonium Heptamolybdate
Ammoniumheptamolybdat
—AA12054-85-2
Ammonium Bicarbonate
Ammoniumhydrogencarbonat
saturatedAA1066-33-7

* = estimated rating in the source, given without a temperature. L = risk of pitting or stress-corrosion cracking. Only chemicals with a rating for this material are listed.

FEP Properties

Full Name Fluorinated Ethylene Propylene
Max Temperature 200°C (392°F)
Min Temperature -200°C (-328°F)
Transparency Optically clear

Common Applications

Tubing

Chemical transfer tubing, laboratory tubing

Linings

Tank and vessel linings for corrosive chemicals

Wire Insulation

Plenum-rated wire and cable insulation

Not Recommended For

FEP may degrade when exposed to:

  • Molten alkali metals
  • Elemental fluorine at high pressure
  • Some perfluorinated compounds at extreme temperatures

Tip: FEP has a lower max temperature than PTFE (200°C vs 260°C). For higher temperatures, use PTFE.

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