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FFKM vs EPDM (EPR) for O-Rings and Seals

FFKM Perfluoroelastomer

EPDM (EP, EPR, Ethylene-Propylene Rubber)

Description
 Both materials are well suited for use in the -15 to 150°C range. EPDM 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, both materials are equally poor. The differences in compression set resistence show that both materials are equally Poor. Additionally, both materials are equally Poor when considering wear resistance. Also, FFKM has a slight advantage when comparing heat stability. Furthermore, FFKM has a slight advantage when comparing short term resilience. Finally, both materials are equally Poor when evaluating differences in permeation resilience. Both materials are resistant to steam, weathering and sunlight and ketones, with FFKM having specific resistences to ozone, solvents, broad spectrum chemical resistance, aliphatic hydrocarbons, chlorinated hydrocarbons, aging, water, esters, ethers, almost universal chemical resistance, extreme high temperatures, inorganic acids and organic acids. EPDM has specific resistence to acids, bases, greases, phosphate ester hydraulic fluids, silicone oils, glycol brake fluids (DOT 3, 4, 5.1), cleaning agents, brake fluids, some acids and steam <300ºF.
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:
Compound: C526Datasheet: View DatasheetHardness: 95Color: BlackLow Temp:
-5 °F
(-25 °C)
High Temp:
475 °F
(250 °C)
Description:
Compound: C605Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-5 °F
(-25 °C)
High Temp:
500 °F
(260 °C)
Description:
Compound: C615Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
0 °F
(-20 °C)
High Temp:
620 °F
(330 °C)
Description:
Compound: K4079Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
600 °F
(320 °C)
Description:
Compound: K6375Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-5 °F
(-25 °C)
High Temp:
525 °F
(275 °C)
Description:
Compound: K7075Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
620 °F
(330 °C)
Description:
Compound: K8575Datasheet: View DatasheetHardness: 60Color: WhiteLow Temp:
20 °F
(-10 °C)
High Temp:
575 °F
(305 °C)
Description:
Compound: K9100Datasheet: View DatasheetHardness: 75Color: Amber translucentLow Temp:
20 °F
(-10 °C)
High Temp:
575 °F
(305 °C)
Description:
Compound: Z1029Datasheet: View DatasheetHardness: 75Color: WhiteLow Temp:
5 °F
(-15 °C)
High Temp:
575 °F
(305 °C)
Description:
Compound: Z1203Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
465 °F
(245 °C)
Description:
Compound: Z1204Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
450 °F
(235 °C)
Description:
Compound: Z1028Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
610 °F
(320 °C)
Description:
Compound: Z1026Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
485 °F
(250 °C)
Description:
Compound: Z1206Datasheet: View DatasheetHardness: 75Color: WhiteLow Temp:
20 °F
(-10 °C)
High Temp:
450 °F
(235 °C)
Description:
Compound: Z1210Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
20 °F
(-10 °C)
High Temp:
525 °F
(275 °C)
Description:
Compound: Z1216Datasheet: View DatasheetHardness: 75Color: WhiteLow Temp:
20 °F
(-10 °C)
High Temp:
620 °F
(330 °C)
Description:
Compound: Z1305Datasheet: View DatasheetHardness: 80Color: WhiteLow Temp:
5 °F
(-15 °C)
High Temp:
590 °F
(310 °C)
Description:
Compound: Z1307Datasheet: View DatasheetHardness: 75Color: Amber translucentLow Temp:
5 °F
(-15 °C)
High Temp:
525 °F
(275 °C)
Description:
Compound: Z1317Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
500 °F
(260 °C)
Description:
Compound: Z1319Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
620 °F
(330 °C)
Description:
Compound: Z1321Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-50 °F
(-50 °C)
High Temp:
480 °F
(250 °C)
Description:
Compound: Z1322Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-50 °F
(-50 °C)
High Temp:
460 °F
(240 °C)
Description:
Compound: Z1352Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
500 °F
(260 °C)
Description:
Compound: Z1401Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-20 °F
(-30 °C)
High Temp:
615 °F
(325 °C)
Description:
Compound: Z1403Datasheet: View DatasheetHardness: 80Color: WhiteLow Temp:
-20 °F
(-30 °C)
High Temp:
600 °F
(315 °C)
Description:
Compound: Z1404Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-5 °F
(-25 °C)
High Temp:
500 °F
(260 °C)
Description:
Compound: Z1409Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
500 °F
(260 °C)
Description:
Compound: Z1411Datasheet: View DatasheetHardness: 60Color: Clear-translucentLow Temp:
5 °F
(-15 °C)
High Temp:
535 °F
(280 °C)
Description:
Compound: Z1412Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
5 °F
(-15 °C)
High Temp:
590 °F
(310 °C)
Description:
Compound: E1000Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: Peroxide cured for improved aging, thermal and chemical stability. NSF61 compliant for drinking water applications and FDA compliant per 21 CFR 177.2600. Compare to Parker E1549-70 and Parco 5323-70.
Compound: E1001Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description:
Compound: E1005Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
265 °F
(130 °C)
Description: General purpose sulfur cured EPDM. Low cost compound with large stocked inventory. Alternative hardness and color options available. Compare to Parker E0603-70.
Compound: E1055Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: Peroxide cured for improved aging, thermal, and chemical stability. Large stocked inventory. Alternative hardness and color options available.
Compound: E1069Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
250 °F
(125 °C)
Description: NSF61 compliant for drinking water applications. Internally lubricated with Struktol.
Compound: E1071Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-50 °F
(-50 °C)
High Temp:
260 °F
(130 °C)
Description: Conductive silver plated nickel filler for EMI / RFI shielding applications. Compare to Parker Chomerics E6434.
Compound: E1074Datasheet: View DatasheetHardness: 70Color: Off-whiteLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: USP Class VI, 3A-Dairy, USDA, and FDA compliant.
Compound: E1077Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-25 °F
(-30 °C)
High Temp:
215 °F
(100 °C)
Description: Conductive nickel plated graphite filler for EMI / RFI shielding applications. Compare to Parker Chomerics E6306.
Compound: E1087Datasheet: View DatasheetHardness: 80Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: Compounded to have an extemely high tensile strength. Peroxide cured for improved aging, thermal, and chemical stability.
Compound: E1097Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: Peroxide cured, NSF61, 3A-Dairy, USDA, and FDA compliant. Improved chloramine resistance.
Compound: E1100Datasheet: View DatasheetHardness: 70Color: TanLow Temp:
-50 °F
(-50 °C)
High Temp:
270 °F
(135 °C)
Description: Silver & Aluminum filled EPDM for conductivity, and EMI & RFI Shielding.
Compound: E1118Datasheet: View DatasheetHardness: 75Color: BlackLow Temp:
-45 °F
(-45 °C)
High Temp:
300 °F
(150 °C)
Description: Nuclear safe, improved radiation resistance, low extractables. Compare to James Walker Shieldseal 663.
Compound: E1121Datasheet: View DatasheetHardness: 90Color: BlackLow Temp:
-60 °F
(-50 °C)
High Temp:
550 °F
(290 °C)
Description: Y267 cured for greatly improved steam resistance. High hardness compound with excellent Explosive Decompression (ED) resistance. Compare to Parker e0962-90.
Compound: E1130Datasheet: View DatasheetHardness: 70Color: BlackLow Temp:
-65 °F
(-55 °C)
High Temp:
300 °F
(150 °C)
Description: NSF51 compliant for food contact.
Temperature Range Comparison
Box: Base Material Family Range
Whiskers: Specialty Compounds
General Information
Full Name
FFKM:
FFKM Perfluoroelastomer
EPDM:
EPDM (EP, EPR, Ethylene-Propylene Rubber)
Short Name
FFKM:
FFKM
EPDM:
EPDM
Common Names
FFKM:
Perfluoroelastomers, FFKM, Markez
EPDM:
EPDM, Ethylene Propylene Diene Monomer Rubber
Mechanical Properties
Specialty Resistances
Ketones
Ketones
Steam
Steam
Weathering And Sunlight
Weathering And Sunlight
Organic Acids
Steam <300ºF
Inorganic Acids
Some Acids
Extreme High Temperatures
Brake Fluids
Almost Universal Chemical Resistance
Cleaning Agents
Ethers
Glycol Brake Fluids (DOT 3, 4, 5.1)
Esters
Silicone Oils
Water
Phosphate Ester Hydraulic Fluids
Aging
Greases
Chlorinated Hydrocarbons
Bases
Aliphatic Hydrocarbons
Acids
Broad Spectrum Chemical Resistance
Solvents
Ozone
Specialty Resistances
FFKM
Organic Acids
Inorganic Acids
Extreme High Temperatures
Almost Universal Chemical Resistance
Ethers
Esters
Water
Aging
Chlorinated Hydrocarbons
Aliphatic Hydrocarbons
Broad Spectrum Chemical Resistance
Solvents
Ozone
EPDM
Steam <300ºF
Some Acids
Brake Fluids
Cleaning Agents
Glycol Brake Fluids (DOT 3, 4, 5.1)
Silicone Oils
Phosphate Ester Hydraulic Fluids
Greases
Bases
Acids
Brands
Chemraz®
Perlast®
Markez®
Isolast®
Parofluor®
Kalrez®
Brands
FFKM
Chemraz®
Perlast®
Markez®
Isolast®
Parofluor®
Kalrez®
EPDM
Limitations
Fluorinated Fluids
Kerosene
Fluorinated Refrigerants
Non-polar Solvents
Perfluorinated Lubricants
Halogenated Solvents
Extreme Low Temperatures
Concentrated Acids
Dynamic Applications
Petroleum Oils
Molten Alkali Metals
Aromatic Hydrocarbons
Hot Amines
Aliphatic Hydrocarbons
Mineral Oils
Common Fuels
Alternative Fuels
Limitations
FFKM
Fluorinated Fluids
Fluorinated Refrigerants
Perfluorinated Lubricants
Extreme Low Temperatures
Dynamic Applications
Molten Alkali Metals
Hot Amines
EPDM
Kerosene
Non-polar Solvents
Halogenated Solvents
Concentrated Acids
Petroleum Oils
Aromatic Hydrocarbons
Aliphatic Hydrocarbons
Mineral Oils
Common Fuels
Alternative Fuels
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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