Solvay Tecnoflon FOR 5381 FKM Elastomer

Features Of Solvay Tecnoflon FOR 5381 FKM Elastomer

1. High resistance to aggressive automotive fluids including modern low-viscosity engine oils, ATF, and coolant formulations.

2. Excellent high-temperature performance with continuous service capability up to 200 °C.

3. Outstanding compression set resistance, ensuring long-term sealing integrity under dynamic and static conditions.

4. Good processability on standard rubber mixing and molding equipment, supporting efficient high-volume production.

5. Low extractables profile, meeting stringent requirements for fuel and lubricant system components.

Typical Applications Of Solvay Tecnoflon FOR 5381 FKM Elastomer

1. Engine valve stem seals and turbocharger oil seals in passenger car and commercial vehicle powertrains.

2. Fuel injector O-rings and high-pressure common rail system seals.

3. Transmission gaskets and clutch piston seals exposed to automatic transmission fluid (ATF) at elevated temperatures.

4. Under-hood sensor housings and connector seals requiring long-term chemical and thermal stability.

5. Industrial hydraulic system components operating with HFD-U and phosphate ester-based fire-resistant fluids.

Specifications Of Solvay Tecnoflon FOR 5381 FKM Elastomer

Solvay Tecnoflon FOR 5381 FKM Elastomer – Frequently Asked Questions (FAQ)

Q1: What distinguishes Tecnoflon FOR 5381 from other FKM elastomers in high-temperature sealing applications?

A: Tecnoflon FOR 5381 is a fluorinated elastomer specifically engineered for enhanced thermal stability and resistance to aggressive media, including hot oils, fuels, and polar solvents. Its unique polymer architecture provides improved retention of mechanical properties at elevated temperatures compared to standard FKM grades, making it especially suitable for dynamic sealing in demanding automotive and industrial environments.

Q2: Is Tecnoflon FOR 5381 compatible with common peroxide or diamine cure systems?

A: Yes, Tecnoflon FOR 5381 is formulated to be compatible with both peroxide-based and diamine-based vulcanization systems. The choice of cure system depends on the desired balance of compression set performance, heat resistance, and processing requirements — peroxide cures typically offer superior thermal aging resistance, while diamine systems may provide better low-temperature flexibility.

Q3: How does Tecnoflon FOR 5381 perform in contact with modern biofuels and low-sulfur diesel formulations?

A: Tecnoflon FOR 5381 demonstrates excellent resistance to swelling and degradation when exposed to advanced hydrocarbon-based fuels, including biodiesel blends (e.g., B5–B20) and ultra-low-sulfur diesel (ULSD). Its high fluorine content contributes to low fuel permeability and stable physical properties under prolonged immersion.

Q4: Can Tecnoflon FOR 5381 be used in food-contact or pharmaceutical processing equipment?

A: Tecnoflon FOR 5381 is not pre-approved for direct food-contact applications under major regulatory frameworks such as FDA 21 CFR or EU Regulation (EC) No 1935/2004. For use in food or pharma environments, final formulation validation—including extractables testing and compliance assessment by the end-user—is required prior to deployment.