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FKM (Viton®) vs Aflas® for O-Rings and Seals

FKM (Viton®)

Aflas® (TFE/P, FEPM)

Description
 Both materials are well suited for use in the -10 to 205°C range. Aflas® has an advantage in lower temperatures and FKM has an advantage in higher temperatures. Marco offers specific compound formulations extending these ranges even futher as can be seen in the following compound comparison chart. When comparing these materials with respect to electrical current resistance, both materials are equally Poor. The differences in compression set resistence show that FKM has a significant advantage. Additionally, FKM has a significant advantage when considering wear resistance. Also, both materials are equally poor when comparing heat stability. Furthermore, both materials are equally Fair when comparing short term resilience. Finally, both materials are equally poor when evaluating differences in permeation resilience. Both materials are resistant to steam, ozone, solvents, strong acids, petroleum oils, brake fluids, acetone, halogenated hydrocarbons, di-ester lubricants, vacuum and most acids, with FKM having specific resistences to compression set, broad spectrum chemical resistance, common fuels, mineral oils, vegetable oils, greases, aliphatic hydrocarbons, aromatic hydrocarbons, chlorinated hydrocarbons, non-flammable hydraulic fluids, aging and silicone oils. Aflas® has specific resistence to bases, hot amines, highly reactive organic chemicals, highly reactive inorganic chemicals, Hydrogen Sulfide (H2S), gamma-ray radiation, amines, ammonia, low molecular weight esters, low molecular weight ethers, skydrol fluids and steam <400ºF.
Compounds
Marco
Compound
Number		DatasheetHardness
(Shore A)		ColorLow TempHigh TempFeatures
Compound: L1000Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
15 °F
(-10 °C)
High Temp:
450 °F
(235 °C)
Description: General purpose Aflas ®, steam resistant, sour gas resistant, acid resistance, for chemical and oil industries  (higher performance Alfas® versions avaialble for oil drilling environments)
Compound: L1003Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
15 °F
(-10 °C)
High Temp:
450 °F
(235 °C)
Description: General purpose Aflas® with a higher durometer. Steam resistant, sour gas resistant, acid resistance, for chemical and oil industries. Good for high pressure applications
Compound: L1009Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
30 °F
(0 °C)
High Temp:
475 °F
(250 °C)
Description: Higher performance and higher durometer Aflas®, improved explosive decompression resistance, steam resistance, sour gas resistance, acid resistance, tested to Norsok M-710 for oilfield
Compound: L1011Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
15 °F
(-10 °C)
High Temp:
450 °F
(235 °C)
Description: FDA/USP class VI compliant Aflas® material. Good for a variety of Pharma and Food related applications.
Compound: V1000Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: General purpose, low cost & high inventory FKM
Compound: V1002Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: AMS-R-83248 M83248/1-### PER MIL-R-83248 TY-1 CL-1, available in a UL recognized grade, compare to Parker V0747-75
Compound: V1003Datasheet: View DatasheetHardness: 75Color: BrownLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: Brown FKM Viton, improved oxidation resistance, compare to Parker V884-75
Compound: V1004Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: M83248/2-### PER MIL-R-83248C TY 1 CL 2, compare to Parker V0709-90
Compound: V1005Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-40 °F
(-40 °C)
High Temp:
400 °F
(205 °C)
Description: M83485/1-XXX PER MIL-R-83485 GLT-type FKM Improved low temp resistance, compare to Parker VM835-75
Compound: V1007Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: General purpose high durometer, good in high pressure and dynamic applications, compare to Parker VA153-90
Compound: V1008Datasheet: View DatasheetHardness: 90Color: BrownLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description:
Compound: V1009Datasheet: View DatasheetHardness: 50Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: General purpose softer FKM, compare to Parker V0986-50
Compound: V1010Datasheet: View DatasheetHardness: 60Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: General purpose softer FKM, compare to Parker V0769-60 and Parco 9009-60
Compound: V1012Datasheet: View DatasheetHardness: 75Color: WhiteLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: White FKM, improved oxidation resistance, compare to Parker V1033-70
Compound: V1019Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: Internally lubricated with PTFE, reduces surface friction and sticking, similar to Parker V0848-75
Compound: V1020Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: Viton® ETP, base resistant , best chemically resistant FKM, compare to Parker V1260-75
Compound: V1033Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-40 °F
(-40 °C)
High Temp:
400 °F
(205 °C)
Description: Viton GFLT® recommended for Oxygenated Automotive Fuels (containing MeOH, EtOH, MTBE, etc. and Aromatic Hydrocarbon Process Fluid Chemicals. Compare to Parker V7594B
Compound: V1038Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-40 °F
(-40 °C)
High Temp:
400 °F
(205 °C)
Description: Viton GLT® Low temperature resistance, improved Water, Steam and Mineral Acids resistance
Compound: V1044Datasheet: View DatasheetHardness: 95Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: Very hard extrusion resistant type A FKM, compare to Parker V1238-95 and Parco 9021-95
Compound: V1062Datasheet: View DatasheetHardness: 90Color: GreenLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description:
Compound: V1073Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: FDA and 3A compliant
Compound: V1081Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: Viton® GF-S best value for widest chemical resistance FKM
Compound: V1082Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-40 °F
(-40 °C)
High Temp:
400 °F
(205 °C)
Description: AED and extrusion resistant GLT type FKM
Compound: V1086Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-55 °F
(-50 °C)
High Temp:
400 °F
(205 °C)
Description: Extended low temperature FKM, Wide chemical resistance including H2S and Oxygenated fuels, compare to Parker V1289-75
Compound: V1088Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: Viton® F material for increased solvent and general chemical resistance
Compound: V1090Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-40 °F
(-40 °C)
High Temp:
400 °F
(205 °C)
Description: AED resistant Viton GLT®, Norsok M710 and NACE TM0297 tested
Compound: V1118Datasheet: View DatasheetHardness: 70Color: WhiteLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: USP class VI medical grade, USDA 3A and FDA compliant
Compound: V1148Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: Metal detectable, FDA compliant type A FKM
Compound: V1160Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-50 °F
(-50 °C)
High Temp:
440 °F
(225 °C)
Description: AED resistant, Norsok M710 and NACE T0297 tested Wide chemical resistance including H2S and Oxygenated fuels.
Compound: V1165Datasheet: View DatasheetHardness: 75Color: BlueLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description:
Compound: V1166Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-60 °F
(-55 °C)
High Temp:
440 °F
(225 °C)
Description: Ultra-low temperature FKM commercial grade Wide chemical resistance including H2S and Oxygenated fuels.
Compound: V1183Datasheet: View DatasheetHardness: 60Color: BlackLow Temp:
-40 °F
(-40 °C)
High Temp:
400 °F
(205 °C)
Description: Terpolymer GLT type for low temperature applications
Compound: V1190Datasheet: View DatasheetHardness: 75Color: BrownLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description: NSF51 compliant for food contact
Compound: V1208Datasheet: View DatasheetHardness: 75Color: BlueLow Temp:
-15 °F
(-30 °C)
High Temp:
400 °F
(205 °C)
Description:
Temperature Range Comparison
Box: Base Material Family Range
Whiskers: Specialty Compounds
General Information
Full Name
FKM:
FKM (Viton®)
Aflas®:
Aflas® (TFE/P, FEPM)
Short Name
FKM:
FKM
Aflas®:
Aflas®
Common Names
FKM:
FKM, FPM (Europe), Fluoropolymer, Fluoroelastomer
Aflas®:
Aflas, TFE/P, FEPM
Mechanical Properties
Specialty Resistances
Acetone
Acetone
Brake Fluids
Brake Fluids
Di-ester Lubricants
Di-ester Lubricants
Halogenated Hydrocarbons
Halogenated Hydrocarbons
Most Acids
Most Acids
Ozone
Ozone
Petroleum Oils
Petroleum Oils
Solvents
Solvents
Steam
Steam
Strong Acids
Strong Acids
Vacuum
Vacuum
Silicone Oils
Steam <400ºF
Aging
Skydrol Fluids
Non-flammable Hydraulic Fluids
Low Molecular Weight Ethers
Chlorinated Hydrocarbons
Low Molecular Weight Esters
Aromatic Hydrocarbons
Ammonia
Aliphatic Hydrocarbons
Amines
Greases
Gamma-ray Radiation
Vegetable Oils
Hydrogen Sulfide (H2S)
Mineral Oils
Highly Reactive Inorganic Chemicals
Common Fuels
Highly Reactive Organic Chemicals
Broad Spectrum Chemical Resistance
Hot Amines
Compression Set
Bases
Specialty Resistances
FKM
Silicone Oils
Aging
Non-flammable Hydraulic Fluids
Chlorinated Hydrocarbons
Aromatic Hydrocarbons
Aliphatic Hydrocarbons
Greases
Vegetable Oils
Mineral Oils
Common Fuels
Broad Spectrum Chemical Resistance
Compression Set
Aflas®
Steam <400ºF
Skydrol Fluids
Low Molecular Weight Ethers
Low Molecular Weight Esters
Ammonia
Amines
Gamma-ray Radiation
Hydrogen Sulfide (H2S)
Highly Reactive Inorganic Chemicals
Highly Reactive Organic Chemicals
Hot Amines
Bases
Brands
Viton®
Fluorel®
Technoflon®
Dai-el®
Brands
FKM
Viton®
Fluorel®
Technoflon®
Dai-el®
Aflas®
Limitations
Ketones
Ketones
Hot Hydrofluoric
Carbon Tetrachloride
Skydrol Fluids
Aromatic Fuels
Low Molecular Weight Ethers
Organic Refrigerants
Chlorosulfonic Acids
Chlorinated Hydrocarbons
Low Molecular Weight Organic Solvents
Low Molecular Weight Organic Acids (formic And Acetic Acids)
Low Molecular Weight Esters
Polar Solvents
Ammonia
Amines
Glycol Brake Fluids (DOT 3, 4, 5.1)
Limitations
FKM
Hot Hydrofluoric
Skydrol Fluids
Low Molecular Weight Ethers
Chlorosulfonic Acids
Low Molecular Weight Organic Solvents
Low Molecular Weight Organic Acids (formic And Acetic Acids)
Low Molecular Weight Esters
Polar Solvents
Ammonia
Amines
Glycol Brake Fluids (DOT 3, 4, 5.1)
Aflas®
Carbon Tetrachloride
Aromatic Fuels
Organic Refrigerants
Chlorinated Hydrocarbons
Marco Rubber & Plastics is an industry leader in custom sealing solutions that go beyond the limits of catalog commodities. Since 1980, our solutions have delivered reliable, long-lasting success for customers worldwide. We offer the largest inventory of specialty and standard sealing solutions backed by best-in-class technology, service and support.
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