What are the advantages and disadvantages of fluororubber?

advantage:
Excellent high temperature resistance:
Fluororubber can be used for a long time at temperatures up to 200 ° C to 250 ° C, and some special grades can even withstand higher temperatures.
This makes it suitable for seals and O-rings that need to work in high-temperature environments.
Excellent chemical resistance:
Fluororubber has strong resistance to various chemicals such as fuels, oils, acids, and solvents.
This makes it perform well in sealing applications in the automotive, aerospace, and chemical industries.
Good aging resistance:
Fluoroelastomer shows excellent anti-aging properties in long-term use, including anti-oxidation, ozone resistance and UV resistance.
This ensures its long-term stability in harsh environments.
Excellent oil and fuel resistance:
Fluororubber maintains good sealing performance with minimal volume change when in contact with fuel, lubricants, and other hydrocarbon substances.
This makes it an ideal material for automotive engines and fuel systems.
Good physical performance:
Fluororubber has high tensile strength, good elasticity, and wear resistance.
These characteristics enable it to withstand mechanical stress and wear.
Low breathability:
Fluororubber has low breathability and can effectively prevent gas leakage.
This makes it suitable for applications that require high sealing, such as pneumatic and hydraulic systems.
Wide range of industrial applications:
Fluororubber is widely used in the automotive, aerospace, chemical, medical, and electronics industries, especially in situations that require high-performance sealing.
Disadvantages:
high-cost:
The production cost of fluororubber is relatively high, which makes its price more expensive than ordinary rubber materials such as natural rubber or nitrile rubber.
This may be a limiting factor in some cost sensitive applications.
High processing difficulty:
The processing of fluororubber requires special equipment and technology because its vulcanization process is relatively complex.
This increases the complexity and cost of the production process.
Limited low-temperature performance:
Fluororubber has poor performance in low-temperature environments and typically becomes brittle below -20 ° C to -30 ° C.
This limits its application in extremely cold environments.
Weak resistance to certain chemicals:
Fluororubber has weaker resistance to certain polar chemicals such as ketones, esters, and certain amines.
This may require the selection of other materials in certain specific chemical environments.
Elasticity and wear resistance are not as good as some other rubbers:
Compared with natural rubber or nitrile rubber, the elasticity and wear resistance of fluororubber may be slightly inferior.
This may be a disadvantage in certain applications that require high elasticity and wear resistance.
Limited food and medical applications:
Some grades of fluororubber may not be suitable for food or medical applications unless specially processed and certified.
This may be a limitation in situations where strict hygiene standards need to be met.
Summary:
Fluororubber is a high-performance material that is particularly suitable for applications that require high temperature, chemical resistance, and oil resistance. However, its high cost and processing difficulty may limit its use in certain situations. When selecting materials, it is necessary to weigh their advantages and disadvantages based on specific application requirements.