Fluorine rubber is more suitable for the engine compartment and other high-temperature and high-pressure environments in the automotive manufacturing industry, while silicone rubber is more suitable for parts that require flexibility, such as door seals. Here is the detailed analysis:
Advantages of Fluorosilicone Rubber in the Automotive Industry
High-temperature resistance: The working temperature range of fluorosilicone rubber is typically between -20℃ and 200℃, and it can withstand short-term temperatures of up to 250℃. This makes fluorosilicone rubber an ideal choice for engine compartments, fuel systems, and other high-temperature environments.
Oil resistance: Fluorosilicone rubber has excellent tolerance to oils and ethanol-based fuels, and has low fuel permeability, which complies with the regulations of the automotive industry regarding gas emissions.
Chemical resistance: Fluorosilicone rubber has extremely high resistance to aromatic hydrocarbons, acids, bases, and chlorinated solvents, and is suitable for various chemical media that may come into contact with automotive manufacturing.
Long-term stability: The service life of fluorosilicone rubber seals is long. In harsh environments, the replacement frequency is significantly lower than that of other materials. From a long-term cost perspective, fluorosilicone rubber may be a more economical choice.
Advantages of Silicone Rubber in the Automotive Industry
Low-temperature resistance: Silicone rubber has a working temperature range of -60℃ to 200℃, and its low-temperature resistance is excellent, suitable for automotive sealing requirements in cold regions.
Good flexibility: The flexibility of silicone rubber ensures good sound insulation and waterproofing, suitable for parts requiring flexibility, such as door seals.
Weather resistance: Silicone rubber has excellent resistance to ultraviolet rays and ozone, effectively extending the lifespan of electrical components and suitable for automotive exterior seals.
Environmental friendliness: Silicone rubber is a recyclable material and does not contain harmful substances, in line with the sustainable development trend of the automotive industry.
Specific application scenarios of fluorosilicone rubber in the automotive industry:
Fluorosilicone rubber:
Engine sealing: Fluorosilicone rubber is widely used in engine oil seals, crankshaft oil seals, camshaft oil seals, etc., due to its excellent high-temperature and oil resistance.
Fuel system: Fluorosilicone rubber seals are used in gasoline pump seals, fuel injector sealing rings, etc., ensuring the sealing and safety of the fuel system.
Exhaust system: Fluorosilicone rubber is used for exhaust system flange gaskets, capable of withstanding high temperatures and chemical corrosion.
Silicone rubber:
Door seals: The flexibility of silicone rubber ensures good sound insulation and waterproofing, enhancing the overall sealing of the vehicle.
Electrical system: Silicone rubber has excellent insulation properties and is suitable for sealing and insulation of electrical systems such as batteries, motors, and sensors.
Interior components: Silicone rubber can be used for seat, dashboard, and control panel decorations, providing different textures and styles.
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