FFKM vs Aflas® for O-Rings and Seals
FFKM Perfluoroelastomer | Aflas® (TFE/P, FEPM) |
Description | Both materials are well suited for use in the -10 to 235°C range. Aflas® 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 FFKM having specific resistences 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. Aflas® has specific resistence 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. | |
| Compounds |
|---|
| Marco Compound Number | Datasheet | Hardness (Shore A) | Color | Low Temp | High Temp | Features | |||
|---|---|---|---|---|---|---|---|---|---|
| Compound: Z1029 | Datasheet:  | Hardness: 75 | Color: White | Low Temp: 5 °F (-15 °C) | High Temp: 575 °F (305 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1203 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: 20 °F (-10 °C) | High Temp: 465 °F (245 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1204 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: 20 °F (-10 °C) | High Temp: 450 °F (235 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1028 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: 5 °F (-15 °C) | High Temp: 610 °F (320 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1026 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: 5 °F (-15 °C) | High Temp: 485 °F (250 °C) | Description: | Get Quote | Buy Online | |
| Compound: C505 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -20 °F (-30 °C) | High Temp: 450 °F (235 °C) | Description: | Get Quote | Buy Online | |
| Compound: C526 | Datasheet: | Hardness: 95 | Color: Black | Low Temp: -5 °F (-25 °C) | High Temp: 475 °F (250 °C) | Description: | Get Quote | Buy Online | |
| Compound: C605 | Datasheet: | Hardness: 80 | Color: Black | Low Temp: -5 °F (-25 °C) | High Temp: 500 °F (260 °C) | Description: | Get Quote | Buy Online | |
| Compound: C615 | Datasheet: | Hardness: 80 | Color: Black | Low Temp: 0 °F (-20 °C) | High Temp: 620 °F (330 °C) | Description: | Get Quote | Buy Online | |
| Compound: K4079 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: 20 °F (-10 °C) | High Temp: 600 °F (320 °C) | Description: | Get Quote | Buy Online | |
| Compound: K6375 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -5 °F (-25 °C) | High Temp: 525 °F (275 °C) | Description: | Get Quote | Buy Online | |
| Compound: K7075 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: 20 °F (-10 °C) | High Temp: 620 °F (330 °C) | Description: | Get Quote | Buy Online | |
| Compound: K8575 | Datasheet: | Hardness: 60 | Color: White | Low Temp: 20 °F (-10 °C) | High Temp: 575 °F (305 °C) | Description: | Get Quote | Buy Online | |
| Compound: K9100 | Datasheet: | Hardness: 75 | Color: Amber translucent | Low Temp: 20 °F (-10 °C) | High Temp: 575 °F (305 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1206 | Datasheet: | Hardness: 75 | Color: White | Low Temp: 20 °F (-10 °C) | High Temp: 450 °F (235 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1210 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: 20 °F (-10 °C) | High Temp: 525 °F (275 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1216 | Datasheet: | Hardness: 75 | Color: White | Low Temp: 20 °F (-10 °C) | High Temp: 620 °F (330 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1305 | Datasheet: | Hardness: 80 | Color: White | Low Temp: 5 °F (-15 °C) | High Temp: 590 °F (310 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1307 | Datasheet: | Hardness: 75 | Color: Amber translucent | Low Temp: 5 °F (-15 °C) | High Temp: 525 °F (275 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1317 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: 5 °F (-15 °C) | High Temp: 500 °F (260 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1319 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: 5 °F (-15 °C) | High Temp: 620 °F (330 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1321 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -50 °F (-50 °C) | High Temp: 480 °F (250 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1322 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: -50 °F (-50 °C) | High Temp: 460 °F (240 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1352 | Datasheet: | Hardness: 80 | Color: Black | Low Temp: 5 °F (-15 °C) | High Temp: 500 °F (260 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1401 | Datasheet: | Hardness: 80 | Color: Black | Low Temp: -20 °F (-30 °C) | High Temp: 615 °F (325 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1403 | Datasheet: | Hardness: 80 | Color: White | Low Temp: -20 °F (-30 °C) | High Temp: 600 °F (315 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1404 | Datasheet: | Hardness: 80 | Color: Black | Low Temp: -5 °F (-25 °C) | High Temp: 500 °F (260 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1409 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: 5 °F (-15 °C) | High Temp: 500 °F (260 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1411 | Datasheet: | Hardness: 60 | Color: Clear-translucent | Low Temp: 5 °F (-15 °C) | High Temp: 535 °F (280 °C) | Description: | Get Quote | Buy Online | |
| Compound: Z1412 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: 5 °F (-15 °C) | High Temp: 590 °F (310 °C) | Description: | Get Quote | Buy Online | |
| Compound: L1000 | Datasheet: | Hardness: 80 | Color: Black | Low 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 Quote | Buy Online | |
| Compound: L1003 | Datasheet: | Hardness: 90 | Color: Black | Low 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 | Get Quote | Buy Online | |
| Compound: L1009 | Datasheet: | Hardness: 90 | Color: Black | Low 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 | Get Quote | Buy Online | |
| Compound: L1011 | Datasheet: | Hardness: 80 | Color: Black | Low 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 Quote | Buy Online |
| Temperature Range Comparison |
|---|
Box: Base Material Family Range
Whiskers: Specialty Compounds
| General Information | ||
|---|---|---|
Full Name | FFKM: FFKM Perfluoroelastomer | Aflas®: Aflas® (TFE/P, FEPM) |
Short Name | FFKM: FFKM | Aflas®: Aflas® |
Common Names | FFKM: Perfluoroelastomers, FFKM, Markez | Aflas®: Aflas, TFE/P, FEPM |
| Mechanical Properties |
|---|
| Specialty Resistances | ||
|---|---|---|
Ozone | Ozone | |
Solvents | Solvents | |
Steam | Steam | |
Organic Acids | Steam <400ºF | |
Inorganic Acids | Most Acids | |
Extreme High Temperatures | Skydrol Fluids | |
Almost Universal Chemical Resistance | Low Molecular Weight Ethers | |
Ethers | Low Molecular Weight Esters | |
Esters | Vacuum | |
Ketones | Di-ester Lubricants | |
Water | Halogenated Hydrocarbons | |
Weathering And Sunlight | Ammonia | |
Aging | Amines | |
Chlorinated Hydrocarbons | Acetone | |
Aliphatic Hydrocarbons | Brake Fluids | |
Broad Spectrum Chemical Resistance | Petroleum Oils | |
Strong Acids | ||
Gamma-ray Radiation | ||
Hydrogen Sulfide (H2S) | ||
Highly Reactive Inorganic Chemicals | ||
Highly Reactive Organic Chemicals | ||
Hot Amines | ||
Bases |
| Specialty Resistances | |
|---|---|
| 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 |
| 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 |
| Brands | ||
|---|---|---|
Chemraz® | ||
Perlast® | ||
Markez® | ||
Isolast® | ||
Parofluor® | ||
Kalrez® |
| Brands | |
|---|---|
| FFKM | Chemraz® Perlast® Markez® Isolast® Parofluor® Kalrez® |
| Aflas® |
| Limitations | ||
|---|---|---|
Fluorinated Fluids | Carbon Tetrachloride | |
Fluorinated Refrigerants | Aromatic Fuels | |
Perfluorinated Lubricants | Organic Refrigerants | |
Extreme Low Temperatures | Ketones | |
Dynamic Applications | Chlorinated Hydrocarbons | |
Molten Alkali Metals | ||
Hot Amines |
| Limitations | |
|---|---|
| FFKM | Fluorinated Fluids Fluorinated Refrigerants Perfluorinated Lubricants Extreme Low Temperatures Dynamic Applications Molten Alkali Metals Hot Amines |
| Aflas® | Carbon Tetrachloride Aromatic Fuels Organic Refrigerants Ketones 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.
