EPDM (EPR) vs Aflas® for O-Rings and Seals
EPDM (EP, EPR, Ethylene-Propylene Rubber) | Aflas® (TFE/P, FEPM) |
Description | Both materials are well suited for use in the -10 to 150°C range. Aflas® has an advantage in lower temperatures and EPDM 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, EPDM has a slight advantage. The differences in compression set resistence show that EPDM has a slight advantage. Additionally, EPDM has a slight advantage when considering wear resistance. Also, Aflas® has a slight advantage when comparing heat stability. Furthermore, both materials are equally Fair when comparing short term resilience. Finally, Aflas® has a slight advantage when evaluating differences in permeation resilience. Both materials are resistant to bases, steam and brake fluids, with EPDM having specific resistences to acids, greases, phosphate ester hydraulic fluids, weathering and sunlight, silicone oils, glycol brake fluids (DOT 3, 4, 5.1), cleaning agents, ketones, some acids and steam <300ºF. Aflas® has specific resistence to ozone, hot amines, solvents, highly reactive organic chemicals, highly reactive inorganic chemicals, Hydrogen Sulfide (H2S), gamma-ray radiation, strong acids, petroleum oils, 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: E1000 | Datasheet:  | Hardness: 70 | Color: Black | Low 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. | Get Quote | Buy Online | |
| Compound: E1001 | Datasheet: | Hardness: 80 | Color: Black | Low Temp: -65 °F (-55 °C) | High Temp: 300 °F (150 °C) | Description: | Get Quote | Buy Online | |
| Compound: E1005 | Datasheet: | Hardness: 70 | Color: Black | Low 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. | Get Quote | Buy Online | |
| Compound: E1055 | Datasheet: | Hardness: 70 | Color: Black | Low 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. | Get Quote | Buy Online | |
| Compound: E1069 | Datasheet: | Hardness: 70 | Color: Black | Low Temp: -65 °F (-55 °C) | High Temp: 250 °F (125 °C) | Description: NSF61 compliant for drinking water applications. Internally lubricated with Struktol. | Get Quote | Buy Online | |
| Compound: E1071 | Datasheet: | Hardness: 75 | Color: Black | Low 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. | Get Quote | Buy Online | |
| Compound: E1074 | Datasheet: | Hardness: 70 | Color: Off-white | Low Temp: -65 °F (-55 °C) | High Temp: 300 °F (150 °C) | Description: USP Class VI, 3A-Dairy, USDA, and FDA compliant. | Get Quote | Buy Online | |
| Compound: E1077 | Datasheet: | Hardness: 75 | Color: Black | Low 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. | Get Quote | Buy Online | |
| Compound: E1087 | Datasheet: | Hardness: 80 | Color: Black | Low 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. | Get Quote | Buy Online | |
| Compound: E1097 | Datasheet: | Hardness: 70 | Color: Black | Low Temp: -65 °F (-55 °C) | High Temp: 300 °F (150 °C) | Description: Peroxide cured, NSF61, 3A-Dairy, USDA, and FDA compliant. Improved chloramine resistance. | Get Quote | Buy Online | |
| Compound: E1100 | Datasheet: | Hardness: 70 | Color: Tan | Low Temp: -50 °F (-50 °C) | High Temp: 270 °F (135 °C) | Description: Silver & Aluminum filled EPDM for conductivity, and EMI & RFI Shielding. | Get Quote | Buy Online | |
| Compound: E1118 | Datasheet: | Hardness: 75 | Color: Black | Low 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. | Get Quote | Buy Online | |
| Compound: E1121 | Datasheet: | Hardness: 90 | Color: Black | Low 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. | Get Quote | Buy Online | |
| Compound: E1130 | Datasheet: | Hardness: 70 | Color: Black | Low Temp: -65 °F (-55 °C) | High Temp: 300 °F (150 °C) | Description: NSF51 compliant for food contact. | 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 | EPDM: EPDM (EP, EPR, Ethylene-Propylene Rubber) | Aflas®: Aflas® (TFE/P, FEPM) |
Short Name | EPDM: EPDM | Aflas®: Aflas® |
Common Names | EPDM: EPDM, Ethylene Propylene Diene Monomer Rubber | Aflas®: Aflas, TFE/P, FEPM |
| Mechanical Properties |
|---|
| Specialty Resistances | ||
|---|---|---|
Bases | Bases | |
Brake Fluids | Brake Fluids | |
Steam | Steam | |
Steam <300ºF | Steam <400ºF | |
Some Acids | Most Acids | |
Ketones | Skydrol Fluids | |
Cleaning Agents | Low Molecular Weight Ethers | |
Glycol Brake Fluids (DOT 3, 4, 5.1) | Low Molecular Weight Esters | |
Silicone Oils | Vacuum | |
Weathering And Sunlight | Di-ester Lubricants | |
Phosphate Ester Hydraulic Fluids | Halogenated Hydrocarbons | |
Greases | Ammonia | |
Acids | Amines | |
Acetone | ||
Petroleum Oils | ||
Strong Acids | ||
Gamma-ray Radiation | ||
Hydrogen Sulfide (H2S) | ||
Highly Reactive Inorganic Chemicals | ||
Highly Reactive Organic Chemicals | ||
Solvents | ||
Hot Amines | ||
Ozone |
| Specialty Resistances | |
|---|---|
| EPDM | Steam <300ºF Some Acids Ketones Cleaning Agents Glycol Brake Fluids (DOT 3, 4, 5.1) Silicone Oils Weathering And Sunlight Phosphate Ester Hydraulic Fluids Greases Acids |
| Aflas® | Steam <400ºF Most Acids Skydrol Fluids Low Molecular Weight Ethers Low Molecular Weight Esters Vacuum Di-ester Lubricants Halogenated Hydrocarbons Ammonia Amines Acetone Petroleum Oils Strong Acids Gamma-ray Radiation Hydrogen Sulfide (H2S) Highly Reactive Inorganic Chemicals Highly Reactive Organic Chemicals Solvents Hot Amines Ozone |
| Limitations | ||
|---|---|---|
Kerosene | Carbon Tetrachloride | |
Non-polar Solvents | Aromatic Fuels | |
Halogenated Solvents | Organic Refrigerants | |
Concentrated Acids | Ketones | |
Petroleum Oils | Chlorinated Hydrocarbons | |
Aromatic Hydrocarbons | ||
Aliphatic Hydrocarbons | ||
Mineral Oils | ||
Common Fuels | ||
Alternative Fuels |
| Limitations | |
|---|---|
| EPDM | Kerosene Non-polar Solvents Halogenated Solvents Concentrated Acids Petroleum Oils Aromatic Hydrocarbons Aliphatic Hydrocarbons Mineral Oils Common Fuels Alternative Fuels |
| 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.
