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FKM Material O Ring

FKM O-rings are sealing devices made from Fluoroelastomer, a type of synthetic rubber known for its excellent resistance to high temperatures, chemicals, and various aggressive fluids. The acronym FKM stands for "Fluorocarbon Rubber," which is a family of elastomers containing fluorine atoms, providing the unique properties that make FKM O-rings highly advantageous in a wide range of industrial applications.

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Basic Info:

1.Raw-Material Brand: 

 DuPont (US) / Dow Corning (Germany) / Bayer (Germany) / 3M


AS568 Standard, Custom Size Accepted

3.Material Type: 

NBR / FKM / Silicone / EPDM / HNBR / ACM / Neoprene...etc.

4 Size: 

ID from 0.5MM to 1.5M and customize size was acceptable in different products

5.Products Application

Metallurgical, chemical, engineering, construction, mining, petroleum machinery


Black, white, red, green, or any customize


Temperature from -60° C to +220° C in different material

8.Factory Certificate

IATF 16949:2016, ISO9001, ISO14001 certificated

9.Product Certificate

KTW-W270/ Watermark/ LFGB / RoHs/REACH/FDA

Boman FKM O Ring Advantages:

1. High Temperature Resistance: FKM O-rings can withstand a wide range of temperatures, from extremely low to high temperatures, without losing their sealing properties or becoming brittle. They can handle temperatures up to 200°C (392°F) and higher with suitable grades.

2. Chemical Resistance: FKM O-rings have excellent chemical resistance to various fluids, including oils, fuels, solvents, acids, and many chemicals. This makes them ideal for applications where exposure to aggressive chemicals is a concern.

3. Fuel Compatibility: FKM O-rings are well-suited for applications in the automotive and aerospace industries, where they can effectively seal fuel systems without degradation.

4. Low Compression Set: FKM O-rings exhibit low compression set, meaning they can maintain their original shape and sealing capabilities even after prolonged exposure to compression or high pressures..

5. Excellent Sealing Performance: FKM O-rings provide an effective and reliable seal, preventing leaks and maintaining the integrity of the sealed components.

6. Weather and UV Resistance: FKM O-rings offer good resistance to weathering, ozone, and ultraviolet (UV) radiation, making them suitable for outdoor applications and exposure to sunlight.

7. Long Service Life: Due to their durability and resistance to degradation, FKM O-rings have a longer service life compared to many other elastomers, reducing the need for frequent replacements and maintenance.

8. High Tear and Abrasion Resistance: FKM O-rings are resistant to tear and abrasion, making them suitable for applications where mechanical wear and friction are concerns.

9. Versatility: FKM O-rings are available in various grades and formulations to suit different application requirements, including specific temperature ranges, chemical resistances, and other performance characteristics.

10. Sealing in Harsh Environments: FKM O-rings are commonly used in demanding applications, such as aerospace, automotive, oil and gas, chemical processing, and industrial equipment, where reliable sealing in harsh environments is essential

Product Parameters:

FKM Material O Ring

Polyacrylate (ACM): Our ACM offer superior resistance to mineral oil, oxygen, and ozone. While they may not be the best choice for water applications, their resilience in other environments is unmatched.

Polychloroprene Rubber (CR): Known for its versatility, our Neoprene provide excellent resistance to ozone, aging, and chemicals. They maintain robust mechanical properties across a broad temperature spectrum.

Nitrile-Butadiene (NBR): Our NBR material are designed for environments with gasoline and aromatic solvents. With varying acrylonitrile content, they balance swell resistance and flexibility for optimal performance.

Hydrogenated NBR (HNBR): Engineered for superior air resistance, our HNBR material feature a hydrogenated process that enhances thermal stability and oxidation resistance.

Ethylene Propylene Rubber (EPDM): EPDM O-Rings are a terpolymer blend, offering excellent cross-linking capabilities for a wide range of applications.

Silicone Rubber (VMQ): Our silicone O-Rings are known for their insulating properties and physiological neutrality, making them ideal for sensitive environments.

Fluorosilicone (FVMQ): Our fluorosilicone O-Rings combine the benefits of silicone with enhanced oil and fuel resistance, thanks to their fluorinated side-chains.

Liquid Silicone Rubber (LSR): Our LSR O-Rings are designed for high-volume production, offering a seamless manufacturing process that allows for intricate shapes, perfect for demanding medical or automotive applications.

Fluorocarbon (FKM): Our FKM material are the epitome of high-performance, boasting exceptional resistance to high temperatures and a wide range of chemicals, with outstanding permeability and compression set.

FKM Material O Ring

FKM Material O Ring

Rubber O Ring Products Process Flow Chart: 

steps The process flow Process flow name Machinery and equipment/measuring equipment features Special features symbols note
product product
Rubber material visual / / /
IQC Hardness tester hardness /
Tensile machine Tensile strength / /
Tensile machine elongation / /
hydrometer The proportion of / /
Aging test chamber The compression permanent deformation / /
3 Mixing mixer / Material thicknessmm /
4             IQC rheometer TS2 / /
TS50 / /
TS90 / /
Hardness tester hardness /
5 Cutting edge
Cutting machine / Is long /
Material weight /

moulding 300 t hot molding machine, automatic monitoring
/ The molding pressure (kgcm2)
/ Molding time
/ Mold temperature
visual appearance / /
Hardness tester hardness /
The projector/caliper size /
7 IPQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
8 deflashing visual appearance / /
Automatic disassembly machine / speed /
/ time /
9 QC Scissors/knife appearance / /

steps The process flow Process flow name Machinery and equipment/measuring equipment features Special features symbols note
product process
10 FQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
11 cleaning Plastic basket / / / Manual cleaning
/ / /
/ / /
12 Post curing The oven / time
/ The temperature
13 Packing Electronic says Single - / /
Baling press The number of / /
The printer The labe / /
visual The cartons / /
14 OQC visual appearance / /
Hardness tester hardness /
The projector/caliper size /
visual check / /
visual weighing / /
15 Warehousing
transport cart Delivery note / /
Courier / /
Put in storage / /
note      1.“◇”Said inspection、“□”Said processing、“↓”Said handling、“△”Said storage、“▲”Said reworking/repairing
2.“★”Said product function and process of key special feature symbol;

FKM Material O RingFKM Material O Ring

FKM O Ring Applications:

O-rings are widely used in various industries and applications:

1. Automotive Industry: FKM O-rings are extensively used in the automotive sector for sealing applications in engines, transmissions, fuel systems, and exhaust systems. They provide excellent resistance to automotive fluids, such as fuels, oils, and coolants, ensuring reliable sealing and preventing leaks.

2. Aerospace and Aviation: FKM O-rings find critical applications in the aerospace and aviation industries, where they are used in aircraft engines, hydraulic systems, fuel systems, and various sealing applications requiring resistance to high temperatures and aggressive chemicals.

3. Chemical Processing: In the chemical processing industry, FKM O-rings are used to seal pumps, reactors, and pipelines, providing resistance to a wide range of aggressive chemicals and maintaining process integrity.

4. Plumbing and Water Systems Seal: O-rings are used in plumbing applications, such as faucets, valves, pumps, and pipe connections. They ensure watertight seals and prevent leakage in both residential and industrial plumbing systems.

5. Oil and Gas Industry: O-rings are used in various oil and gas equipment, such as valves, pumps, and connectors, to provide effective sealing and prevent leaks in harsh and demanding environments.

6. Medical and Pharmaceutical Equipment Seal: O-rings are utilized in medical devices and pharmaceutical equipment, such as pumps, valves, and fluid handling systems. They ensure secure and sanitary seals to prevent leakage and contamination.

7. Environmental Applications: FKM O-rings are employed in environmental monitoring and water treatment equipment, where they provide resistance to various chemicals and maintain sealing performance in challenging conditions.

8. Food and Beverage Industry: O-rings made from FDA-approved materials are used in food and beverage processing equipment to maintain hygienic conditions and prevent product contamination.



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