FKM is the standard abbreviation for Fluorocarbon Rubber, also referred to as FPM in the international standard ISO 1629. It is a synthetic rubber renowned for its exceptional resistance to high temperatures, oils, and chemicals, making it one of the "gold standards" in high-performance elastomers.
I. Core Properties and Benefits
FKM's widespread use stems from its exceptional combination of properties:
Excellent High-Temperature Resistance:
The continuous operating temperature range is typically -20°C to +200°C.
Specially formulated grades can withstand short-term temperatures of +300°C or as low as -40°C.
Excellent Chemical and Fluid Resistance:
Excellent oil and fuel resistance: Virtually no swelling occurs in a wide range of lubricating oils, hydraulic fluids, fuels, and gear oils.
Resistant to a wide range of chemicals: including acids (weak to moderately strong), bases, halogens, hydrocarbons, certain esters, and ethers.
Disadvantages: Poor resistance to polar organic solvents such as ketones, acetone, and ethyl acetate, as well as ammonia, hot water, and high-pressure steam.
Excellent Aging and Weathering Resistance:
It is extremely resistant to ozone, oxidation, and ultraviolet (UV) radiation, and unlike ordinary rubber, it will not crack or age, resulting in an extremely long service life.
Excellent Mechanical Properties:
It has excellent tensile strength, tear resistance, and abrasion resistance, maintaining excellent performance especially at high temperatures.
Low Gas Permeability:
The dense molecular structure provides excellent barrier properties to a variety of gases (such as oxygen and nitrogen), making it suitable for gas sealing applications.
Flame Retardancy:
It is inherently non-flammable and self-extinguishing, meeting the fire safety requirements of many industries.
Main Application Areas
Due to the aforementioned properties, FKM is widely used in industries with stringent sealing material requirements:
Automotive: This is the largest application area. It is used in crankshaft oil seals, valve stem seals, O-rings, fuel injection system seals, turbocharger hoses, and other components, capable of withstanding the high temperatures and oily environments found within the engine compartment.
Aerospace: Used for sealing fuel, hydraulic oil, lubricating oil, and flame-retardant hydraulic fluid (Skydrol) systems, capable of withstanding extreme temperature and pressure fluctuations.
Petrochemical: Used in oilfield equipment, valve seals, pump diaphragms, and hoses, capable of withstanding harsh chemical media and high temperatures.
Semiconductor manufacturing: Used in high-purity chemical transfer and sealing systems, it exhibits extremely low extractables, preventing process contamination.
Other Industries: Widely used in hydraulic and pneumatic systems, the food and pharmaceutical industries (special grades that comply with FDA and other standards are required), and any harsh environment requiring long-term, reliable sealing.
Company Profile
Wuhan Feitengya Chemical New Material Co., Ltd. was established in 2008 in Wuhan. It is an expert in the supply of fluororesin in the whole industry chain integrating scientific research, development, production and sales.
Feitengya takes high-end materials (PVDF, FEP, PFA, ETFE, PTFE, PCTFE) as the core and extends to the entire industrial chain such as lithium battery new energy, photovoltaic new energy, environmental protection, 5G industry, coating field, wire and cable, pharmaceutical-fine chemicals, aerospace, and automobile fields. Established a good long-term strategic cooperative relationship with many well-known brands, college laboratories, research and development institutions, and production bases around the world, and built a huge production capacity system. The company adheres to the customer-centric and is committed to the development concept of continuously creating value for customers, perceived responsibility, high-quality return, win-win cooperation!
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