Aflas® vs FFKM for O-Rings and Seals

Aflas® (TFE/P, FEPM)

FFKM Perfluoroelastomer

Description
Both materials are well suited for use in the -10 to 235°C range. FFKM has an advantage in lower temperatures and FFKM 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, FFKM has a slight advantage. The differences in compression set resistence show that FFKM has a slight advantage. Additionally, FFKM has a slight advantage when considering wear resistance. Also, both materials are equally poor when comparing heat stability. Furthermore, FFKM has a slight advantage when comparing short term resilience. Finally, Aflas® has a slight advantage when evaluating differences in permeation resilience. Both materials are resistant to steam, ozone and solvents, with Aflas® having specific resistences to bases, hot amines, highly reactive organic chemicals, highly reactive inorganic chemicals, Hydrogen Sulfide (H2S), gamma-ray radiation, strong acids, petroleum oils, brake fluids, acetone, amines, ammonia, halogenated hydrocarbons, di-ester lubricants, vacuum, low molecular weight esters, low molecular weight ethers, skydrol fluids, most acids and steam <400ºF. FFKM has specific resistence to broad spectrum chemical resistance, aliphatic hydrocarbons, chlorinated hydrocarbons, aging, weathering and sunlight, water, ketones, esters, ethers, almost universal chemical resistance, extreme high temperatures, inorganic acids and organic acids.
Compounds
Marco
Compound
Number
DatasheetHardness
(Shore A)
ColorLow TempHigh TempFeatures
Compound: C505Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-20 °F
(-30 °C)
High Temp:
450 °F
(235 °C)
Description: Get QuoteBuy Online
Compound: C526Datasheet: View DatasheetHardness: 95Color: BlackLow Temp:
-5 °F
(-25 °C)
High Temp:
475 °F
(250 °C)
Description: Get QuoteBuy Online
Compound: C605Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-5 °F
(-25 °C)
High Temp:
500 °F
(260 °C)
Description: Get QuoteBuy Online
Compound: C615Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
0 °F
(-20 °C)
High Temp:
620 °F
(330 °C)
Description: Get QuoteBuy Online
Compound: K4079Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
600 °F
(320 °C)
Description: Get QuoteBuy Online
Compound: K6375Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-5 °F
(-25 °C)
High Temp:
525 °F
(275 °C)
Description: Get QuoteBuy Online
Compound: K7075Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
620 °F
(330 °C)
Description: Get QuoteBuy Online
Compound: K8575Datasheet: View DatasheetHardness: 60Color: WhiteLow Temp:
20 °F
(-10 °C)
High Temp:
575 °F
(305 °C)
Description: Get QuoteBuy Online
Compound: K9100Datasheet: View DatasheetHardness: 75Color: Amber translucentLow Temp:
20 °F
(-10 °C)
High Temp:
575 °F
(305 °C)
Description: Get QuoteBuy Online
Compound: Z1026Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
485 °F
(250 °C)
Description: Get QuoteBuy Online
Compound: Z1028Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
610 °F
(320 °C)
Description: Get QuoteBuy Online
Compound: Z1029Datasheet: View DatasheetHardness: 75Color: WhiteLow Temp:
5 °F
(-15 °C)
High Temp:
575 °F
(305 °C)
Description: Get QuoteBuy Online
Compound: Z1203Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
465 °F
(245 °C)
Description: Get QuoteBuy Online
Compound: Z1204Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
450 °F
(235 °C)
Description: Get QuoteBuy Online
Compound: Z1206Datasheet: View DatasheetHardness: 75Color: WhiteLow Temp:
20 °F
(-10 °C)
High Temp:
450 °F
(235 °C)
Description: Get QuoteBuy Online
Compound: Z1210Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
525 °F
(275 °C)
Description: Get QuoteBuy Online
Compound: Z1216Datasheet: View DatasheetHardness: 75Color: WhiteLow Temp:
20 °F
(-10 °C)
High Temp:
620 °F
(330 °C)
Description: Get QuoteBuy Online
Compound: Z1305Datasheet: View DatasheetHardness: 80Color: WhiteLow Temp:
5 °F
(-15 °C)
High Temp:
590 °F
(310 °C)
Description: Get QuoteBuy Online
Compound: Z1307Datasheet: View DatasheetHardness: 75Color: Amber translucentLow Temp:
5 °F
(-15 °C)
High Temp:
525 °F
(275 °C)
Description: Get QuoteBuy Online
Compound: Z1317Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
500 °F
(260 °C)
Description: Get QuoteBuy Online
Compound: Z1319Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
620 °F
(330 °C)
Description: Get QuoteBuy Online
Compound: Z1321Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-50 °F
(-50 °C)
High Temp:
480 °F
(250 °C)
Description: Get QuoteBuy Online
Compound: Z1322Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-50 °F
(-50 °C)
High Temp:
460 °F
(240 °C)
Description: Get QuoteBuy Online
Compound: Z1352Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
500 °F
(260 °C)
Description: Get QuoteBuy Online
Compound: Z1401Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-20 °F
(-30 °C)
High Temp:
615 °F
(325 °C)
Description: Get QuoteBuy Online
Compound: Z1403Datasheet: View DatasheetHardness: 80Color: WhiteLow Temp:
-20 °F
(-30 °C)
High Temp:
600 °F
(315 °C)
Description: Get QuoteBuy Online
Compound: Z1404Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-5 °F
(-25 °C)
High Temp:
500 °F
(260 °C)
Description: Get QuoteBuy Online
Compound: Z1409Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
500 °F
(260 °C)
Description: Get QuoteBuy Online
Compound: Z1411Datasheet: View DatasheetHardness: 60Color: Clear-translucentLow Temp:
5 °F
(-15 °C)
High Temp:
535 °F
(280 °C)
Description: Get QuoteBuy Online
Compound: Z1412Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
590 °F
(310 °C)
Description: Get QuoteBuy Online
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)Get QuoteBuy Online
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 applicationsGet QuoteBuy Online
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 oilfieldGet QuoteBuy Online
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.Get QuoteBuy Online
Temperature Range Comparison
Box: Base Material Family Range
Whiskers: Specialty Compounds
General Information
Full Name
Aflas®:
Aflas® (TFE/P, FEPM)
FFKM:
FFKM Perfluoroelastomer
Short Name
Aflas®:
Aflas®
FFKM:
FFKM
Common Names
Aflas®:
Aflas, TFE/P, FEPM
FFKM:
Perfluoroelastomers, FFKM, Markez
Mechanical Properties
Specialty Resistances
Ozone
Ozone
Solvents
Solvents
Steam
Steam
Steam <400ºF
Organic Acids
Most Acids
Inorganic Acids
Skydrol Fluids
Extreme High Temperatures
Low Molecular Weight Ethers
Almost Universal Chemical Resistance
Low Molecular Weight Esters
Ethers
Vacuum
Esters
Di-ester Lubricants
Ketones
Halogenated Hydrocarbons
Water
Ammonia
Weathering And Sunlight
Amines
Aging
Acetone
Chlorinated Hydrocarbons
Brake Fluids
Aliphatic Hydrocarbons
Petroleum Oils
Broad Spectrum Chemical Resistance
Strong Acids
Gamma-ray Radiation
Hydrogen Sulfide (H2S)
Highly Reactive Inorganic Chemicals
Highly Reactive Organic Chemicals
Hot Amines
Bases
Specialty Resistances
Aflas®
Steam <400ºF
Most Acids
Skydrol Fluids
Low Molecular Weight Ethers
Low Molecular Weight Esters
Vacuum
Di-ester Lubricants
Halogenated Hydrocarbons
Ammonia
Amines
Acetone
Brake Fluids
Petroleum Oils
Strong Acids
Gamma-ray Radiation
Hydrogen Sulfide (H2S)
Highly Reactive Inorganic Chemicals
Highly Reactive Organic Chemicals
Hot Amines
Bases
FFKM
Organic Acids
Inorganic Acids
Extreme High Temperatures
Almost Universal Chemical Resistance
Ethers
Esters
Ketones
Water
Weathering And Sunlight
Aging
Chlorinated Hydrocarbons
Aliphatic Hydrocarbons
Broad Spectrum Chemical Resistance
Brands
Chemraz®
Perlast®
Markez®
Isolast®
Parofluor®
Kalrez®
Brands
Aflas®
FFKM
Chemraz®
Perlast®
Markez®
Isolast®
Parofluor®
Kalrez®
Limitations
Carbon Tetrachloride
Fluorinated Fluids
Aromatic Fuels
Fluorinated Refrigerants
Organic Refrigerants
Perfluorinated Lubricants
Ketones
Extreme Low Temperatures
Chlorinated Hydrocarbons
Dynamic Applications
Molten Alkali Metals
Hot Amines
Limitations
Aflas®
Carbon Tetrachloride
Aromatic Fuels
Organic Refrigerants
Ketones
Chlorinated Hydrocarbons
FFKM
Fluorinated Fluids
Fluorinated Refrigerants
Perfluorinated Lubricants
Extreme Low Temperatures
Dynamic Applications
Molten Alkali Metals
Hot Amines