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Business FPM (FKM)
Properties
FPM (FKM) is highly resistant to temperatures and chemicals. Temperature range: from -20°С to +200°С (short-term up to +230°С). Thanks to its rich structure and chemical composition This material has excellent resistance to ozone, weathering and aging. Swelling in different environments is very minor, also in aromatic hydrocarbons. This material can also be used in high vacuum conditions.
FPM (FKM) does not light up!!!
Stability data:
|
Good stability |
Medium stability |
Low/zero. sustainability |
|
mineral oils and fats |
hot water |
|
| aliphatic hydrocarbons (propane, butane, gasoline) |
skydrol 500 |
|
| silicone oils and fats |
ammonia, amines, alkalies |
|
| vegetable and animal oils and fats |
hot water vapor |
|
|
flammable, also super flammable |
low molecular weight organic acids (formic and acetic acid) | |
| oils with sulfur and highly aromatic oils | flux acid, chlorosulfonic acid | |
| Highly flammable liquid of groups HFD-S and HFD-R | Highly flammable liquids of groups HFA, HFB, HFC | polar solvents (acetone, methyl ethyl ketone, dioxane) |
| biodegradable hydraulic fluids | Glycol-based brake fluids | |
| aromatic hydrocarbons (gasoline, toluene) | ||
| chlorinated hydrocarbons |
Basic physics - mechanical characteristics FPM (FKM)
|
Properties |
Unit |
Meaning |
Test standard |
| Hardness | SHORE A | 85±5 | DIN 53505 |
| Density | g/cm 3 | 2.50±0.03 | DIN 53479 |
| Tensile strength | N/mm 2 | >=10 | DIN 53504 |
| Tensile strength | % | >=90 | DIN 53504 |
| Permanent deformation 100°C/22h | % | <=14 | DIN 53517 |
| Wide Tear Strength | N/mm | 17 | DIN 53515 |
| Rebound Elasticity | % | 8 | DIN 53512 |
| Abrasion | mm 3 | 180 | DIN 53516 |
| Minimum application temperature | °C | -20 | — |
| Maximum application temperature | °C | +200 | — |
| Thermal aging 24h/230°C: hardness change change durable to break change durable tensile |
Shore A % % |
+3 +11 -18 |
DIN 53505 DIN 53504 DIN 53504 |
| Behavior in ASTM oil no. 1 n. DIN 53521 70h/150°C: hardness change change durable to break change durable tensile change volume |
Shore A % % % |
-1 +15 -20 -0,2 |
DIN 53505 DIN 53504 DIN 53504 DIN 53521 |
| Behavior in ASTM oil no. 3 n. DIN 53521 70h/110°C: hardness change change durable to break change durable tensile change volume |
Shore A % % % |
-2 +6 -20 +1,9 |
DIN 53505 DIN 53504 DIN 53504 DIN 53521 |
Application area:
FPM (FKM) is mainly used in areas with high temperature and chemical loads. Moreover, FPM (FKM) is used in hydraulic systems with highly flammable hydraulic fluids of the HFD group and as a pre-tensioning element for H-POLYURETHANE (TPU) seals in biodegradable liquids.
Able to withstand large temperature changes (from -40 to +200°C) and resistant to aggressive environments, but at the same time maintaining their properties, they are made from special fluorine-containing rubbers.
Viton seal
The Viton brand, which produces fluorine rubber, is considered the best today. A special rubber mixture is made from fluorine rubber, which is then used to make seals for hydraulic mechanisms. Viton seal also has the abbreviation FKM (the American name for this material).
The Viton seal, as well as the FKM seal, perform well in a variety of aggressive liquids. Mechanisms using Viton cuffs have good physical and mechanical properties. Due to the fluorine content in this product, this material is non-flammable.
Viton ring
The Viton O-ring has an operating temperature range from -20°C to +200°C. Short-term heating up to +220°C is possible. Sometimes the mechanism requires a very low temperature to operate, for example, about -50°C. In this case, you will need a Viton seal made of special frost-resistant rubber. When fluorine rubber is heated above +300°C, this material begins to emit toxic fumes, which is not safe even when cooled.
Due to their chemical composition, Viton oil seals are highly resistant to any weather influences, as well as aging. In aromatic hydrocarbons and other environments, Viton fluorinated elastomer swells, but this is not significant. Fluorine rubber can also be used in high vacuum conditions.
Chemical resistance characteristics of Viton
| Good stability | Medium stability | Low/zero stability |
|---|---|---|
| mineral oils and lubricants | hot water | |
| aliphatic hydrocarbons (propane, butane) | skydrol 500 | |
| silicone oils and fats | ammonia, amines, alkalis | |
| vegetable and animal oils and fats | superheated water vapor | |
| flammable, also super flammable | Low molecular weight organic acids (formic and acetic acids) | |
| oils with sulfur and highly aromatic oils | hydrofluoric acid, chlorosulfonic acid | |
| highly flammable hydraulic fluids of the HFD-S group (phosphoric acid esters, some types may cause destruction) and HFD-R (chlorinated hydrocarbons) | highly flammable hydraulic fluids of groups HFA, HFB, HFC | polar solvents (acetone, methyl ethyl ketone, dioxane, ethyl acetate) |
| biodegradable hydraulic fluids | glycol based brake fluids | |
| aromatic hydrocarbons (benzene, toluene) |
Viton seals for sale
® (FPM / FKM) is a registered trademark of fluorine rubber owned by DuPont, and today Viton® is considered the best of all existing fluorine rubbers. A rubber mixture is made from fluorine rubber, from which a seal is then made.
In accordance with various standardization systems, the phrase “fluorine rubber” is denoted by various abbreviations, but the meaning and the material itself do not change.
Abbreviation FPM- in accordance with the guidelines of the International Organization for Standardization (ISO), abbreviation FKM- in accordance with the designation adopted by the American Society for Testing and Materials (ASTM). Those. FPM- international name, and FKM- American name for the same material. In Russia, the abbreviation is accepted - FC(SKF-26, SKF-32).
Viton® began production in 1957. The start of production of this material made it possible to solve many problems in major industries such as:
- Aerospace industry;
- Automotive industry;
- Chemical industry and transport;
- Food and pharmaceutical industry;
- Equipment for working in undeveloped areas and difficult operating conditions;
- Exploration and production in oil and gas fields;
- Oil refining and transportation.
Main applications of fluoroelastomers: oil seals, cuffs, sealants, coatings, vibration dampers, compensators, gaskets, membranes, plugs, diaphragms, heat-resistant O-rings, rod seals, heat-resistant cords and plates.
At the moment, the most common types of rubbers are general purpose rubbers: Viton® A, Viton® B, Viton® F.
Fluorinated rubbers based on these rubbers differ in their resistance to oxygen-containing automobile fuels, motor oils, and water-based liquids.
There are also fluorine rubbers for special purposes: Viton ® GLT, Viton® GFLT, Viton® Extreme, Viton® Base Resistant.
Types of fluororubbers:
| Viton® | A | B | F | GLT | G.F.L. | Extreme | Base Resistant |
| % fluoride | 66 | 68 | 70 | 64 | 66 | 66 | - |
| Chemical resistance | ++ | +++ | ++++ | + | ++++ | ++++ | ++++ |
| Durability to high temperature |
+++ | +++ | +++ | +++ | +++ | +++ | +++ |
| Durability to low temperature |
+ | 0 | - | ++++ | ++ | + | + |
Note: The more + signs, the better the properties of the rubber.
Viton ® / FPM / FKM / Fluororubber- works well under exposure to a variety of aggressive liquids. Systems using Viton® products are more resistant to a wide range of chemicals. It has excellent mechanical and physical properties; the fluorine content in the rubber mixture ensures the non-flammability of this material. Fluorinated elastomers have low gas permeability and minimal weight loss when operating in a vacuum.
Resistance of Viton ® material:
| Stable | Not stable |
| combustion | ethers |
| aging | Glycol-based brake fluids |
| aggressive chemical compounds | organic acids, such as octic and formic |
| mineral oils and fats | flux acid |
| silicone oils and fats | chlorosulfonic acid |
| oils with sulfur and highly aromatic oils | ketones (acetophenone) |
| biodegradable hydraulic fluids | hot water vapor |
| ozone | ammonia |
| aliphatic hydrocarbons (propane, butane, gasoline) | amines |
| aromatic hydrocarbons (gasoline, toluene) | acetone |
| chlorinated hydrocarbons | methyl ethyl ketone |
| ultraviolet radiation | dioxane |
Operating temperature range of fluorine rubber rings: from -20°С to +200°С, withstands short-term heating up to +230°С.
In some cases, properly designed fluorine rubber parts based on special frost-resistant Viton ® rubber can ensure tightness of fixed joints even at temperatures below -60°C.
It should be taken into account that when the temperature of fluoroelastomer seals increases above +300°C, toxic gases and vapors begin to be released from them, and even after cooling, these materials are unsafe.
Information on the performance of rubbers based on Viton ® fluorine rubber at elevated temperatures:
10,000 hours at T=204 °C.
3000 hours at T=232 °C.
1000 hours at T=260 °C.
240 hours at T=288 °C.
48 hours at T=316 °C.
Viton® retains good sealing properties after exposure to air for more than 10,000 hours at temperatures up to 204°C.
The AvtokomTechnology group of companies uses this material to manufacture seals operating in high-temperature environments.
Raw materials under the Viton ® brand have undergone careful testing in our laboratory in accordance with the requirements of the food industry and are successfully used on the equipment of various manufacturing companies in Moscow.
Fluoroelastomer is a high quality heat and weather resistant rubber that has excellent resistance to ozone, oxidation, mineral oils, fuels, hydraulic fluids, aromatic and other organic solvents and chemicals.
- Data applicable to seals, O-rings, and hydraulic hoses (not only, of course):
FPM. More details
FPM is a semi-finished product made from bisphenol-crosslinked fluoride rubber (Viton DU PONT). FPM usually colored brown.
Properties
FPM is highly resistant to temperatures and chemicals. Temperature range: from 0 o C to +200 o C (short term up to +230 o C). Due to its rich structure and chemical composition, this material has excellent resistance to ozone, weathering and aging. Swelling in various media is very low, also in aromatic hydrocarbons. This material can also be used in high vacuum conditions.
FPM does not burn.
Resilience data
| Good stability | Medium stability | Low/zero stability |
| Mineral oils and fats | Hot water | - |
| Aliphatic hydrocarbons (propane, butane, gasoline) | - | Skidrol 500 |
| Silicone oils and fats | - | Ammonia, amines, alkalies |
| Vegetable and animal oils and fats | - | Hot water vapor |
| Fuel, also super-flammable | - | Low molecular weight organic acids (formic and acetic) |
| Oils with sulfur and highly aromatic oils | - | Flux acid, chlorosulfonic acid |
| Highly flammable liquid group HFD-S And HFD-R | Highly flammable liquid groups H.F.A., HFB, HFC | Polar solvents (acetone, methyl ethyl ketone, dioxane) |
| Biodegradable hydraulic fluids | - | Glycol-based brake fluids |
| Aromatic hydrocarbons (gasoline, toluene) | - | - |
| Chlorinated hydrocarbons | - | - |
Application area
FPM Mainly used in areas with high temperature and chemical loads. Moreover, FPM used in hydraulic systems with highly flammable hydraulic fluids of the group HFD and as a pre-tensioning element for polyurethane seals in biodegradable liquids.
Preferred Application:
- special seals in the chemical industry and heating engineering;
- shaft seals;
- O-rings;
- hydraulic seals for HFD-liquids.
Basic physical and mechanical characteristics of FPM
|
Properties |
Unit |
Meaning |
Test standard |
| Hardness | SHORE A | 85±5 | DIN 53505 |
| Density | g/cm 3 | 2.50±0.03 | DIN 53479 |
| Tensile strength | N/mm 2 | ≥10 | DIN 53504 |
| Tensile strength | % | ≥90 | DIN 53504 |
| Permanent deformation 100 o C/22h | % | ≤14 | DIN 53517 |
| Wide Tear Strength | N/mm | 17 | DIN 53515 |
| Rebound Elasticity | % | 8 | DIN 53512 |
| Abrasion | mm 3 | 180 | DIN 53516 |
| Minimum application temperature | o C | -20 | - |
| Maximum application temperature | o C | +200 | - |
| Thermal aging 24h/230 o C: hardness change change durable to break change durable tensile |
SHORE A % % |
+3 +11 -18 |
DIN 53505 DIN 53504 DIN 53504 |
| Behavior in ASTM oil no. 1 n. DIN 53521 70h/150 o C: hardness change change durable to break change durable tensile change volume |
SHORE A % % % |
-1 +15 -20 -0,2 |
DIN 53505 DIN 53504 DIN 53504 DIN 53521 |
| Behavior in ASTM oil no. 3 n. DIN 53521 70h/110 o C: hardness change change durable to break change durable tensile change volume |
SHORE A % % % |
-2 +6 -20 +1,9 |
DIN 53505 DIN 53504 DIN 53504 DIN 53521 |
Viton® is a registered trademark of fluoroelastomer owned by DuPont. A rubber mixture is made from fluorine rubber, from which a seal is then made. In accordance with various standardization systems, the phrase “fluorine rubber” is denoted by various abbreviations, but the meaning and the material itself do not change. The abbreviation FPM is in accordance with the guidelines of the International Organization for Standardization (ISO), the abbreviation FKM is in accordance with the designation adopted by the American Society for Testing and Materials (ASTM). Those. FPM is the international name and FKM is the American name for the same material. In Russia, the abbreviation FC is accepted (SKF-26, SKF-32). Viton® fluorine rubber began to be produced in 1957. The start of production of this material made it possible to solve many problems in major industries such as:
- Aerospace industry
- Automotive industry
- Chemical industry and transport
- Food and pharmaceutical industry
- Equipment for working in undeveloped areas and in difficult operating conditions
- Exploration and production in oil and gas fields
- Oil refining and transportation
The main applications of fluoroelastomers are oil seals, radial lip seals, sealants, coatings, vibration dampers, expansion joints, gaskets, O-rings, rod seals, cords and plates. At the moment, the most common types of rubbers are general-purpose rubbers: Viton® A, Viton® B, Viton® F. Fluoride rubbers based on these rubbers differ in their resistance to oxygen-containing automobile fuels, motor oils, and water-based liquids. There are also fluorine rubbers for special purposes - Viton® GLT, Viton® GFLT, Viton® Extreme, Viton® Base Resistant. Types of fluorine rubbers:
| Viton® | A | B | F | GLT | GFLT | Extreme | Base Resistant |
|---|---|---|---|---|---|---|---|
| % fluoride | 66 | 68 | 70 | 64 | 66 | 56 | - |
| Chemical resistance | ++ | +++ | ++++ | + | ++++ | ++++ | ++++ |
| Durability to high temperature |
+++ | +++ | +++ | +++ | +++ | +++ | +++ |
| Durability to low temperature |
+ | 0 | - | ++++ | ++ | + | + |
Note: the more + signs, the better the properties of the rubber.
FPM / FKM / Viton® (Fluoroelastomer) - works well in environments exposed to a variety of aggressive liquids. Systems using Viton® products are more resistant to a wide range of chemicals. It has excellent mechanical and physical properties; the fluorine content in the rubber mixture ensures the non-flammability of this material. Fluorinated elastomers have low gas permeability and minimal weight loss when operating in a vacuum.
Fluoroelastomer is a high quality heat and weather resistant rubber that has excellent resistance to ozone, oxidation, mineral oils, fuels, hydraulic fluids, aromatic and other organic solvents and chemicals.
- Data applicable to seals, O-rings, and hydraulic hoses (not only, of course):
FPM. More details
FPM is a semi-finished product made from bisphenol-crosslinked fluoride rubber (Viton DU PONT). FPM usually colored brown.
Properties
FPM is highly resistant to temperatures and chemicals. Temperature range: from 0 o C to +200 o C (short term up to +230 o C). Due to its rich structure and chemical composition, this material has excellent resistance to ozone, weathering and aging. Swelling in various media is very low, also in aromatic hydrocarbons. This material can also be used in high vacuum conditions.
FPM does not burn.
Resilience data
| Good stability | Medium stability | Low/zero stability |
| Mineral oils and fats | Hot water | - |
| Aliphatic hydrocarbons (propane, butane, gasoline) | - | Skidrol 500 |
| Silicone oils and fats | - | Ammonia, amines, alkalies |
| Vegetable and animal oils and fats | - | Hot water vapor |
| Fuel, also super-flammable | - | Low molecular weight organic acids (formic and acetic) |
| Oils with sulfur and highly aromatic oils | - | Flux acid, chlorosulfonic acid |
| Highly flammable liquid group HFD-S And HFD-R | Highly flammable liquid groups H.F.A., HFB, HFC | Polar solvents (acetone, methyl ethyl ketone, dioxane) |
| Biodegradable hydraulic fluids | - | Glycol-based brake fluids |
| Aromatic hydrocarbons (gasoline, toluene) | - | - |
| Chlorinated hydrocarbons | - | - |
Application area
FPM Mainly used in areas with high temperature and chemical loads. Moreover, FPM used in hydraulic systems with highly flammable hydraulic fluids of the group HFD and as a pre-tensioning element for polyurethane seals in biodegradable liquids.
Preferred Application:
- special seals in the chemical industry and heating engineering;
- shaft seals;
- O-rings;
- hydraulic seals for HFD-liquids.
Basic physical and mechanical characteristics of FPM
|
Properties |
Unit |
Meaning |
Test standard |
| Hardness | SHORE A | 85±5 | DIN 53505 |
| Density | g/cm 3 | 2.50±0.03 | DIN 53479 |
| Tensile strength | N/mm 2 | ≥10 | DIN 53504 |
| Tensile strength | % | ≥90 | DIN 53504 |
| Permanent deformation 100 o C/22h | % | ≤14 | DIN 53517 |
| Wide Tear Strength | N/mm | 17 | DIN 53515 |
| Rebound Elasticity | % | 8 | DIN 53512 |
| Abrasion | mm 3 | 180 | DIN 53516 |
| Minimum application temperature | o C | -20 | - |
| Maximum application temperature | o C | +200 | - |
| Thermal aging 24h/230 o C: hardness change change durable to break change durable tensile |
SHORE A % % |
+3 +11 -18 |
DIN 53505 DIN 53504 DIN 53504 |
| Behavior in ASTM oil no. 1 n. DIN 53521 70h/150 o C: hardness change change durable to break change durable tensile change volume |
SHORE A % % % |
-1 +15 -20 -0,2 |
DIN 53505 DIN 53504 DIN 53504 DIN 53521 |
| Behavior in ASTM oil no. 3 n. DIN 53521 70h/110 o C: hardness change change durable to break change durable tensile change volume |
SHORE A % % % |
-2 +6 -20 +1,9 |
DIN 53505 DIN 53504 DIN 53504 DIN 53521 |
Viton® is a registered trademark of fluoroelastomer owned by DuPont. A rubber mixture is made from fluorine rubber, from which a seal is then made. In accordance with various standardization systems, the phrase “fluorine rubber” is denoted by various abbreviations, but the meaning and the material itself do not change. The abbreviation FPM is in accordance with the guidelines of the International Organization for Standardization (ISO), the abbreviation FKM is in accordance with the designation adopted by the American Society for Testing and Materials (ASTM). Those. FPM is the international name and FKM is the American name for the same material. In Russia, the abbreviation FC is accepted (SKF-26, SKF-32). Viton® fluorine rubber began to be produced in 1957. The start of production of this material made it possible to solve many problems in major industries such as:
- Aerospace industry
- Automotive industry
- Chemical industry and transport
- Food and pharmaceutical industry
- Equipment for working in undeveloped areas and in difficult operating conditions
- Exploration and production in oil and gas fields
- Oil refining and transportation
The main applications of fluoroelastomers are oil seals, radial lip seals, sealants, coatings, vibration dampers, expansion joints, gaskets, O-rings, rod seals, cords and plates. At the moment, the most common types of rubbers are general-purpose rubbers: Viton® A, Viton® B, Viton® F. Fluoride rubbers based on these rubbers differ in their resistance to oxygen-containing automobile fuels, motor oils, and water-based liquids. There are also fluorine rubbers for special purposes - Viton® GLT, Viton® GFLT, Viton® Extreme, Viton® Base Resistant. Types of fluorine rubbers:
| Viton® | A | B | F | GLT | GFLT | Extreme | Base Resistant |
|---|---|---|---|---|---|---|---|
| % fluoride | 66 | 68 | 70 | 64 | 66 | 56 | - |
| Chemical resistance | ++ | +++ | ++++ | + | ++++ | ++++ | ++++ |
| Durability to high temperature |
+++ | +++ | +++ | +++ | +++ | +++ | +++ |
| Durability to low temperature |
+ | 0 | - | ++++ | ++ | + | + |
Note: the more + signs, the better the properties of the rubber.
FPM / FKM / Viton® (Fluoroelastomer) - works well in environments exposed to a variety of aggressive liquids. Systems using Viton® products are more resistant to a wide range of chemicals. It has excellent mechanical and physical properties; the fluorine content in the rubber mixture ensures the non-flammability of this material. Fluorinated elastomers have low gas permeability and minimal weight loss when operating in a vacuum.
