FKM Precompound Properties
Fluoroelastomer precompound is designed for applications that require chemical resistance, thermal stability, and reliable mechanical properties. Its formulation allows for customization based on processing and performance requirements, making it suitable for a wide range of industries.
- Chemical and Oil Resistance
Resistant to chemical corrosion, making it suitable for seals in pumps and equipment containers used in chemical processing. Helps prevent leaks and degradation when exposed to aggressive substances.
Performs well in oil-rich environments, resisting swelling and deterioration when in contact with petroleum-based and synthetic oils, lubricants, and fuels. It is commonly used in engine seals, transmission components, and valve seals where long-term oil resistance is required.
- Thermal Performance
Designed for long-term use in high-temperature environments, maintaining stable properties at 200°C and above. Certain grades can withstand short-term exposure to 250°C–300°C, making it one of the most heat-resistant elastomers available. This allows it to perform reliably in applications exposed to continuous heat and thermal cycling.
Performance at low temperatures is relatively limited, with elasticity retention typically ranging between -15°C and -20°C. As the temperature decreases, tensile strength increases, but reduced flexibility may lead to sealing challenges and potential leakage in extremely cold conditions.
- Low Gas Permeability
Its dense polymer structure minimizes gas transmission and leakage, making it suitable for vacuum systems, aerospace components, and other applications where maintaining an airtight seal is critical.
- Flame Resistance
Fluoroelastomer precompound has inherent flame-retardant properties, allowing it to self-extinguish when exposed to fire. This characteristic enhances safety in high-risk environments, reducing the risk of fire-related failures.
- Processability and Versatility
The precompounding process improves workability, making it suitable for compression molding, extrusion, and injection molding. Manufacturers can easily shape it into custom rubber components for diverse industrial applications, ensuring compatibility with different production requirements.
- Mechanical Properties
High tensile and tear strength ensure durability under continuous stress, reducing the risk of cracking or damage. This enhances the longevity and reliability of components used in demanding applications.
Moderate hardness, typically ranging from Shore A 70–80, provides a balance between rigidity and flexibility. This allows parts to maintain their shape and structural stability over extended use.
Excellent resistance to permanent deformation, enabling components to recover their original shape and dimensions after prolonged stress or compression. Low compression set helps maintain long-term sealing performance in gaskets and other sealing applications.