Fluorosilicone vs Aflas® for O-Rings and Seals

Fluorosilicone (FVMQ, FSIL)

Aflas® (TFE/P, FEPM)

Description
Both materials are well suited for use in the -10 to 180°C range. Fluorosilicone has an advantage in lower temperatures and Aflas® 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, Fluorosilicone has a slight advantage. The differences in compression set resistence show that both materials are equally Fair. Additionally, both materials are equally Fair 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, Aflas® has a significant advantage when evaluating differences in permeation resilience. Both materials are resistant to ozone and ammonia, with Fluorosilicone having specific resistences to compression set, common fuels, vegetable oils, aromatic hydrocarbons, chlorinated hydrocarbons, aging, weathering and sunlight, oxidizing chemicals, animal oils, chlorinated solvents, diluted alkalies, diester oils, aliphatic fluorocarbons, aromatic fluorocarbons, silicone oils, toluene, benzene, jet fuels, phosphate esters, dry heat, wide temperature range, some acids and some petroleum oils. Aflas® has specific resistence to bases, steam, hot amines, solvents, highly reactive organic chemicals, highly reactive inorganic chemicals, Hydrogen Sulfide (H2S), gamma-ray radiation, strong acids, petroleum oils, brake fluids, acetone, amines, 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
DatasheetHardness
(Shore A)
ColorLow TempHigh TempFeatures
Compound: F1001Datasheet: View DatasheetHardness: 70Color: BlueLow Temp:
-100 °F
(-75 °C)
High Temp:
350 °F
(180 °C)
Description: Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/1-### per Mil-R-25988 CL-1 GR-70, jet fuel resistanceGet QuoteBuy Online
Compound: F1002Datasheet: View DatasheetHardness: 75Color: BlueLow Temp:
-80 °F
(-65 °C)
High Temp:
350 °F
(180 °C)
Description: Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/2, jet fuel resistanceGet QuoteBuy Online
Compound: F1003Datasheet: View DatasheetHardness: 60Color: BlueLow Temp:
-100 °F
(-75 °C)
High Temp:
350 °F
(180 °C)
Description: Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/3, jet fuel resistanceGet QuoteBuy Online
Compound: F1006Datasheet: View DatasheetHardness: 40Color: BlueLow Temp:
-100 °F
(-75 °C)
High Temp:
350 °F
(180 °C)
Description: Jet fuel resistanceGet 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
Fluorosilicone:
Fluorosilicone (FVMQ, FSIL)
Aflas®:
Aflas® (TFE/P, FEPM)
Short Name
Fluorosilicone:
Fluorosilicone
Aflas®:
Aflas®
Common Names
Fluorosilicone:
Fluorosilicone, FVMQ
Aflas®:
Aflas, TFE/P, FEPM
Mechanical Properties
Specialty Resistances
Ammonia
Ammonia
Ozone
Ozone
Some Petroleum Oils
Steam <400ºF
Some Acids
Most Acids
Wide Temperature Range
Skydrol Fluids
Dry Heat
Low Molecular Weight Ethers
Phosphate Esters
Low Molecular Weight Esters
Jet Fuels
Vacuum
Benzene
Di-ester Lubricants
Toluene
Halogenated Hydrocarbons
Silicone Oils
Amines
Aromatic Fluorocarbons
Acetone
Aliphatic Fluorocarbons
Brake Fluids
Diester Oils
Petroleum Oils
Diluted Alkalies
Strong Acids
Chlorinated Solvents
Gamma-ray Radiation
Animal Oils
Hydrogen Sulfide (H2S)
Oxidizing Chemicals
Highly Reactive Inorganic Chemicals
Weathering And Sunlight
Highly Reactive Organic Chemicals
Aging
Solvents
Chlorinated Hydrocarbons
Hot Amines
Aromatic Hydrocarbons
Steam
Vegetable Oils
Bases
Common Fuels
Compression Set
Specialty Resistances
Fluorosilicone
Some Petroleum Oils
Some Acids
Wide Temperature Range
Dry Heat
Phosphate Esters
Jet Fuels
Benzene
Toluene
Silicone Oils
Aromatic Fluorocarbons
Aliphatic Fluorocarbons
Diester Oils
Diluted Alkalies
Chlorinated Solvents
Animal Oils
Oxidizing Chemicals
Weathering And Sunlight
Aging
Chlorinated Hydrocarbons
Aromatic Hydrocarbons
Vegetable Oils
Common Fuels
Compression Set
Aflas®
Steam <400ºF
Most Acids
Skydrol Fluids
Low Molecular Weight Ethers
Low Molecular Weight Esters
Vacuum
Di-ester Lubricants
Halogenated Hydrocarbons
Amines
Acetone
Brake Fluids
Petroleum Oils
Strong Acids
Gamma-ray Radiation
Hydrogen Sulfide (H2S)
Highly Reactive Inorganic Chemicals
Highly Reactive Organic Chemicals
Solvents
Hot Amines
Steam
Bases
Brands
Silastic®
Brands
Fluorosilicone
Silastic®
Aflas®
Limitations
Ketones
Ketones
Phosphate-ester Bases
Carbon Tetrachloride
Adelhydes
Aromatic Fuels
Hydrazine
Organic Refrigerants
Dynamic Applications
Chlorinated Hydrocarbons
Amines
Brake Fluids
Limitations
Fluorosilicone
Phosphate-ester Bases
Adelhydes
Hydrazine
Dynamic Applications
Amines
Brake Fluids
Aflas®
Carbon Tetrachloride
Aromatic Fuels
Organic Refrigerants
Chlorinated Hydrocarbons