Aug 10,
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Fluoroelastomer (FKM) is a synthetic rubber that exhibits superior resistance to high temperatures, chemicals, and harsh conditions. It is one of the most sought-after materials in the manufacturing industry owing to its remarkable physical characteristics and exceptional performance. Today, we will discuss the advantages of FKM material that make it stand out in the crowd.
1. Resistance to Temperature
FKM has a high-temperature resistance ranging from -20°C to +200°C. It can withstand intense heat without losing its physical and chemical properties, making it ideal for applications that require high temperature resistance.
2. Chemical Resistance
FKM exhibits excellent resistance to chemical attack, including acids, bases, and solvents. Unlike other elastomers that may degrade or swell in the presence of aggressive chemicals, FKM remains unaffected and retains its performance.
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3. Low Compression Set
Compression set refers to the degree to which a material loses its original thickness due to continuous compression. FKM has a low compression set, meaning it can maintain its original shape and thickness even after continuous compression.
FKM is a copolymer made of highly fluorinated hydrocarbons and developed during the s. FKM seals display very good resistance to media, ozone and aging. The material is also stable in fuels as well as petroleum-based oils and greases, along with aliphatic and aromatic hydrocarbons.
It is unstable with regard to polar solvents (e.g. acetone, MEK and ethyl acetate), low molecular weight organic acids (formic and acetic acid), glycol-based brake fluid, ammonia gas, amines, alkalis and superheated steam. There are copolymers, terpolymers and tetrapolymers with fluorine content varying between 65 and 71 percent. In this way, FKM can be precisely designed for specific requirements in terms of media resistance and cold flexibility. This is a benefit that, in particular, reliably protects applications in the chemical and pharmaceutical industries that have aggressive media and process temperatures of above 140 °C, which materials such as EPDM or HNBR cannot handle.
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