Fluorocarbon compounds are widely used in chemical, aerospace, and industrial applications. These materials offer excellent chemcial and high temperature resistance. Not recommended for use with steam, amines, or polar solvents. Specialty FKM types and formulations are available for improved low temperature and chemical resistance as well as colors, durometer hardness, food and medical grade, high pressure and explosive decompression resistance.
Service Temperature Range
Resistances
Low Temp. Range, °F Abbv. High Temp. Range, °F Compr. Set Oils Steam Weather/
UV
Fuels Acids/
Solvents
Bases Abrasion Wear Permeation
temperature range rating a rating a rating s rating a rating a rating a rating s rating b rating a
temperature range chart
  • Excellent
  • Moderate
  • Poor
  • Specialty Compounds Only

 

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Popular Allorings Compounds
Compound FKM Type Relative
Price
Relative
Availability
Low Temp ° F High Temp ° F Durometer Color Special
Features
View Datasheet A Relative Price: 3 Relative Availability: 5 -15  437  75  Black 
General purpose, commodity grade compound. 
View Datasheet A Relative Price: 3 Relative Availability: 4 -15  437  75  Brown 
General purpose, commodity grade compound. 
View Datasheet A Relative Price: 3 Relative Availability: 4 -15  437  90  Black 
Higher hardness for use in higher pressure applications. 
View Datasheet ETP Relative Price: 5 Relative Availability: 3 -6  437  75  Black 
ETP type compound with greatly improved chemical resistance for use in harsh environments. 
View Datasheet GLT Relative Price: 4 Relative Availability: 3 -40  437  75  Black 
GLT type compound with improved low temperature resistance. 
View Datasheet GLT Relative Price: 4 Relative Availability: 2 -40  437  90  Black 
NORSOK NACE
GLT type compound with improved low temperature resistance, higher hardness, and Explosive Decompression (ED) resistance. Excellent for oilfiled and drilling applications. 
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General Description:

Heat Resistance of Viton Chemical Resistance

Viton® O-Ring and seal performance cost benefit makes it the second most popular sealing material. Fluoroelastomer (Viton®, FKM) offers a wide range of resistance to chemicals, oil and heat, with situational service life above 200°C. The outstanding heat stability and excellent resistances are due to the high ratio of fluorine to hydrogen, the strength of the carbon-fluorine bond, and the absence of unsaturation. FKM compounds are widely used in chemical, automotive, aerospace and industrial applications. Fluoroelastomers are referred to generically as FKM polymers per the nomenclature noted in ASTM D1418. In the SAE J200 ASTM D2000 classification system for rubber materials Fluoroelastomers are documented as a “HK”.

Common Names:

FKM, FPM (Europe), Fluoropolymer, Fluoroelastomer. Trade Names: Viton®, Fluorel®, Technoflon®, Dai-El®.

Specialty Performance Polymer Types: A, B, F, GLT, GFLT, XLT, ULT, ETP, TBR.

Features:

  • Situational service life above 200°C
  • Excellent resistance to acids, fuels, mineral and vegetable oils and greases, aliphatic, aromatic and chlorinated hydrocarbons, non-flammable hydraulic fluids (HFD) and many organic solvents and chemicals.
  • Excellent resistance to aging and ozone.
  • Low gas permeability, low compression set.

Limitations:

  • Ketones (MEK,and Acetone) and Skydrol fluids.
  • Amines and Anhydrous Ammonia.
  • Low molecular weight esters and ethers. Hot hydrofluoric or chlorosulfonic acids and low molecular weight organic acids (formic and acetic acids).
  • Polar solvents, low molecular weight organic solvents and glycol-based brake fluids

Service Temperature Range*:

-17°F (-27°C) to 437o F (225°C)
Specialty formulations, Low Temperature: -67°F (-55°C)
Specialty formulations, High Temperature: 450°F (232°C)

*Approximation for dry air service. Actual temperature range of a compound in an end-use application is highly dependent on part type, hardware configuration, applied forces, chemical media, pressure and thermal cycling effects, and other factors. Consult a Marco Engineer for more details.

FKM Type Comparison Chart

FKM Viton® Type

A

B

F

GF

GLT

GFLT

XLT

ULT

ETP

Aflas®

BRFKM

Allorings Commodity Compound number

V1000

V1032

V1088

V1081

V1038

V1033

V1086

V1166

V1020

L1000

L1010

Relative Pricing dollar sign dollar signdollar sign dollar signdollar sign dollar signdollar sign dollar signdollar sign dollar signdollar signdollar sign dollar signdollar signdollar signdollar sign dollar signdollar signdollar signdollar signdollar sign dollar signdollar signdollar signdollar signdollar sign dollar signdollar sign dollar signdollar sign
Availability availability 5 availability 1 availability 1 availability 3 availability 3 availability 3 availability 2 availability 2 availability 4 availability 4 availability 3

H2S %

2

5

5

5

5

5

10

10

5

20

40

High Temperature Performance F° (C°)
(Basic Static Applications)

437 (225) 437 (225) 437 (225) 437 (225) 437 (225) 437 (225) 437 (225) 437 (225) 437 (225) 450 (232) 450 (232)

Low Temperature Performance F° (C°)
(Basic Static Applications)

-17 (-27) -11 (-24) 1 (-17) 3 (-16) -40 (-40) -29 (-34) -58 (-50) -67 (-55) -6 (-21) 19(-7) 1(-17)
TR-10 Low Temperature Flexibility F° (C°) 1 (-17) 7 (-14) 20 (-7) 21 (-6) -22 (-30) -11 (-24) -40 (-40) -49 (-45) 12 (-11) 37 (3) 20 (-7)
Strong Base, high pH, Caustic, Amines not recommended not recommended not recommended not recommended not recommended not recommended not recommended not recommended good good good
Low Molecular Weight Carbonyls 100%
concentration (MTBB, MBK, MIBK, etc.)
not recommended not recommended not recommended not recommended not recommended not recommended good good good good good
Engine Lubricating Oil, SG and SH not recommended good good excellent good excellent good good excellent excellent excellent
Aqueous fluids, steam, mineral acids
(H2So4, HNO2)
not recommended good good excellent excellent excellent excellent excellent excellent excellent excellent
Aromatic Hydrocarbons (toluene, etc.) good excellent excellent excellent good excellent excellent excellent excellent good excellent
Automotive Fuels Oxygenated with
MEOH, ETOH, MTBE, etc.
good excellent excellent excellent good excellent excellent excellent excellent excellent excellent
Engine Lubricating Oil, SE and SF good excellent excellent excellent excellent excellent excellent excellent excellent excellent excellent
Resistance to Compression Set excellent good good good good good good good good good good
Automotive and Most Aviation Fuels excellent excellent excellent excellent excellent excellent excellent excellent excellent excellent excellent

Rating Scale:   excellent = Excellent good = Good not recommended = Not Recommended