Fluorosilicone vs FKM (Viton®) for O-Rings and Seals
Fluorosilicone (FVMQ, FSIL) | FKM (Viton®) |
Description | Both materials are well suited for use in the -30 to 180°C range. Fluorosilicone has an advantage in lower temperatures and FKM 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 FKM has a significant advantage. Additionally, FKM has a significant advantage 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, FKM has a significant advantage when evaluating differences in permeation resilience. Both materials are resistant to ozone, compression set, common fuels, vegetable oils, aromatic hydrocarbons, chlorinated hydrocarbons, aging and silicone oils, with Fluorosilicone having specific resistences to weathering and sunlight, oxidizing chemicals, animal oils, chlorinated solvents, diluted alkalies, diester oils, aliphatic fluorocarbons, aromatic fluorocarbons, toluene, benzene, jet fuels, phosphate esters, dry heat, wide temperature range, ammonia, some acids and some petroleum oils. FKM has specific resistence to steam, solvents, broad spectrum chemical resistance, mineral oils, greases, aliphatic hydrocarbons, non-flammable hydraulic fluids, strong acids, petroleum oils, brake fluids, acetone, halogenated hydrocarbons, di-ester lubricants, vacuum and most acids. |
Compounds |
---|
Marco Compound Number | Datasheet | Hardness (Shore A) | Color | Low Temp | High Temp | Features | |
---|---|---|---|---|---|---|---|
Compound: F1001 | Datasheet: | Hardness: 70 | Color: Blue | Low 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 resistance | |
Compound: F1002 | Datasheet: | Hardness: 75 | Color: Blue | Low Temp: -80 °F (-65 °C) | High Temp: 350 °F (180 °C) | Description: Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/2, jet fuel resistance | |
Compound: F1003 | Datasheet: | Hardness: 60 | Color: Blue | Low Temp: -100 °F (-75 °C) | High Temp: 350 °F (180 °C) | Description: Aerospace Military Specification Mil-Spec AMS-R-25988 M25988/3, jet fuel resistance | |
Compound: F1006 | Datasheet: | Hardness: 40 | Color: Blue | Low Temp: -100 °F (-75 °C) | High Temp: 350 °F (180 °C) | Description: Jet fuel resistance | |
Compound: V1000 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: General purpose, low cost & high inventory FKM | |
Compound: V1002 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: AMS-R-83248 M83248/1-### PER MIL-R-83248 TY-1 CL-1, available in a UL recognized grade, compare to Parker V0747-75 | |
Compound: V1003 | Datasheet: | Hardness: 75 | Color: Brown | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: Brown FKM Viton, improved oxidation resistance, compare to Parker V884-75 | |
Compound: V1004 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: M83248/2-### PER MIL-R-83248C TY 1 CL 2, compare to Parker V0709-90 | |
Compound: V1005 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -40 °F (-40 °C) | High Temp: 400 °F (205 °C) | Description: M83485/1-XXX PER MIL-R-83485 GLT-type FKM Improved low temp resistance, compare to Parker VM835-75 | |
Compound: V1007 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: General purpose high durometer, good in high pressure and dynamic applications, compare to Parker VA153-90 | |
Compound: V1008 | Datasheet: | Hardness: 90 | Color: Brown | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: | |
Compound: V1009 | Datasheet: | Hardness: 50 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: General purpose softer FKM, compare to Parker V0986-50 | |
Compound: V1010 | Datasheet: | Hardness: 60 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: General purpose softer FKM, compare to Parker V0769-60 and Parco 9009-60 | |
Compound: V1012 | Datasheet: | Hardness: 75 | Color: White | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: White FKM, improved oxidation resistance, compare to Parker V1033-70 | |
Compound: V1019 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: Internally lubricated with PTFE, reduces surface friction and sticking, similar to Parker V0848-75 | |
Compound: V1020 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: Viton® ETP, base resistant , best chemically resistant FKM, compare to Parker V1260-75 | |
Compound: V1033 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -40 °F (-40 °C) | High Temp: 400 °F (205 °C) | Description: Viton GFLT® recommended for Oxygenated Automotive Fuels (containing MeOH, EtOH, MTBE, etc. and Aromatic Hydrocarbon Process Fluid Chemicals. Compare to Parker V7594B | |
Compound: V1038 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -40 °F (-40 °C) | High Temp: 400 °F (205 °C) | Description: Viton GLT® Low temperature resistance, improved Water, Steam and Mineral Acids resistance | |
Compound: V1044 | Datasheet: | Hardness: 95 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: Very hard extrusion resistant type A FKM, compare to Parker V1238-95 and Parco 9021-95 | |
Compound: V1062 | Datasheet: | Hardness: 90 | Color: Green | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: | |
Compound: V1073 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: FDA and 3A compliant | |
Compound: V1081 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: Viton® GF-S best value for widest chemical resistance FKM | |
Compound: V1082 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: -40 °F (-40 °C) | High Temp: 400 °F (205 °C) | Description: AED and extrusion resistant GLT type FKM | |
Compound: V1086 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -55 °F (-50 °C) | High Temp: 400 °F (205 °C) | Description: Extended low temperature FKM, Wide chemical resistance including H2S and Oxygenated fuels, compare to Parker V1289-75 | |
Compound: V1088 | Datasheet: | Hardness: 75 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: Viton® F material for increased solvent and general chemical resistance | |
Compound: V1090 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: -40 °F (-40 °C) | High Temp: 400 °F (205 °C) | Description: AED resistant Viton GLT®, Norsok M710 and NACE TM0297 tested | |
Compound: V1118 | Datasheet: | Hardness: 70 | Color: White | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: USP class VI medical grade, USDA 3A and FDA compliant | |
Compound: V1148 | Datasheet: | Hardness: 70 | Color: Black | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: Metal detectable, FDA compliant type A FKM | |
Compound: V1160 | Datasheet: | Hardness: 90 | Color: Black | Low Temp: -50 °F (-50 °C) | High Temp: 440 °F (225 °C) | Description: AED resistant, Norsok M710 and NACE T0297 tested Wide chemical resistance including H2S and Oxygenated fuels. | |
Compound: V1165 | Datasheet: | Hardness: 75 | Color: Blue | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: | |
Compound: V1166 | Datasheet: | Hardness: 70 | Color: Black | Low Temp: -60 °F (-55 °C) | High Temp: 440 °F (225 °C) | Description: Ultra-low temperature FKM commercial grade Wide chemical resistance including H2S and Oxygenated fuels. | |
Compound: V1183 | Datasheet: | Hardness: 60 | Color: Black | Low Temp: -40 °F (-40 °C) | High Temp: 400 °F (205 °C) | Description: Terpolymer GLT type for low temperature applications | |
Compound: V1190 | Datasheet: | Hardness: 75 | Color: Brown | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: NSF51 compliant for food contact | |
Compound: V1208 | Datasheet: | Hardness: 70 | Color: Blue | Low Temp: -15 °F (-30 °C) | High Temp: 400 °F (205 °C) | Description: |
Temperature Range Comparison |
---|
Box: Base Material Family Range
Whiskers: Specialty Compounds
General Information | ||
---|---|---|
Full Name | Fluorosilicone: Fluorosilicone (FVMQ, FSIL) | FKM: FKM (Viton®) |
Short Name | Fluorosilicone: Fluorosilicone | FKM: FKM |
Common Names | Fluorosilicone: Fluorosilicone, FVMQ | FKM: FKM, FPM (Europe), Fluoropolymer, Fluoroelastomer |
Mechanical Properties |
---|
Specialty Resistances | ||
---|---|---|
Aging | Aging | |
Aromatic Hydrocarbons | Aromatic Hydrocarbons | |
Chlorinated Hydrocarbons | Chlorinated Hydrocarbons | |
Common Fuels | Common Fuels | |
Compression Set | Compression Set | |
Ozone | Ozone | |
Silicone Oils | Silicone Oils | |
Vegetable Oils | Vegetable Oils | |
Some Petroleum Oils | Most Acids | |
Some Acids | Vacuum | |
Ammonia | Di-ester Lubricants | |
Wide Temperature Range | Halogenated Hydrocarbons | |
Dry Heat | Acetone | |
Phosphate Esters | Brake Fluids | |
Jet Fuels | Petroleum Oils | |
Benzene | Strong Acids | |
Toluene | Non-flammable Hydraulic Fluids | |
Aromatic Fluorocarbons | Aliphatic Hydrocarbons | |
Aliphatic Fluorocarbons | Greases | |
Diester Oils | Mineral Oils | |
Diluted Alkalies | Broad Spectrum Chemical Resistance | |
Chlorinated Solvents | Solvents | |
Animal Oils | Steam | |
Oxidizing Chemicals | ||
Weathering And Sunlight |
Specialty Resistances | |
---|---|
Fluorosilicone | Some Petroleum Oils Some Acids Ammonia Wide Temperature Range Dry Heat Phosphate Esters Jet Fuels Benzene Toluene Aromatic Fluorocarbons Aliphatic Fluorocarbons Diester Oils Diluted Alkalies Chlorinated Solvents Animal Oils Oxidizing Chemicals Weathering And Sunlight |
FKM | Most Acids Vacuum Di-ester Lubricants Halogenated Hydrocarbons Acetone Brake Fluids Petroleum Oils Strong Acids Non-flammable Hydraulic Fluids Aliphatic Hydrocarbons Greases Mineral Oils Broad Spectrum Chemical Resistance Solvents Steam |
Brands | ||
---|---|---|
Silastic® | Viton® | |
Fluorel® | ||
Technoflon® | ||
Dai-el® |
Brands | |
---|---|
Fluorosilicone | Silastic® |
FKM | Viton® Fluorel® Technoflon® Dai-el® |
Limitations | ||
---|---|---|
Amines | Amines | |
Ketones | Ketones | |
Phosphate-ester Bases | Hot Hydrofluoric | |
Adelhydes | Skydrol Fluids | |
Hydrazine | Low Molecular Weight Ethers | |
Dynamic Applications | Chlorosulfonic Acids | |
Brake Fluids | Low Molecular Weight Organic Solvents | |
Low Molecular Weight Organic Acids (formic And Acetic Acids) | ||
Low Molecular Weight Esters | ||
Polar Solvents | ||
Ammonia | ||
Glycol Brake Fluids (DOT 3, 4, 5.1) |
Limitations | |
---|---|
Fluorosilicone | Phosphate-ester Bases Adelhydes Hydrazine Dynamic Applications Brake Fluids |
FKM | Hot Hydrofluoric Skydrol Fluids Low Molecular Weight Ethers Chlorosulfonic Acids Low Molecular Weight Organic Solvents Low Molecular Weight Organic Acids (formic And Acetic Acids) Low Molecular Weight Esters Polar Solvents Ammonia Glycol Brake Fluids (DOT 3, 4, 5.1) |