Solvay Tecnoflon FOR TF 838K FKM Elastomer

Features Of Solvay Tecnoflon FOR TF 838K FKM Elastomer

1. High fluorine content (~68–70 wt%) delivering exceptional resistance to aggressive fuels, oils, and modern low-sulfur diesel formulations.

2. Optimized for high-temperature compression set resistance, maintaining sealing integrity up to 200 °C in static applications.

3. Excellent chemical resistance against polar solvents, lubricants, and automotive fluids including biofuels and synthetic ester-based oils.

4. Good processability on standard rubber processing equipment, supporting efficient extrusion and moldability for complex profiles.

5. Low extractables profile suitable for demanding automotive and industrial fluid-handling systems requiring minimal leaching.

Typical Applications Of Solvay Tecnoflon FOR TF 838K FKM Elastomer

1. Fuel system seals and gaskets for gasoline direct injection (GDI) and turbocharged engines.

2. High-pressure common rail (HPCR) injector O-rings and valve stem seals.

3. Transmission and powertrain fluid seals exposed to ATF, CVT fluids, and dual-clutch lubricants.

4. Under-hood hose linings and diaphragms in emission control systems (e.g., EVAP, SCR).

5. Static and dynamic seals in industrial hydraulic and pneumatic systems operating with phosphate ester or synthetic lubricants.

Specifications Of Solvay Tecnoflon FOR TF 838K FKM Elastomer

Solvay Tecnoflon FOR TF 838K FKM Elastomer – Frequently Asked Questions (FAQ)

Q1: What is the primary chemical composition and distinguishing feature of Tecnoflon FOR TF 838K?

A: Tecnoflon FOR TF 838K is a fluorocarbon elastomer (FKM) based on vinylidene fluoride (VDF) and hexafluoropropylene (HFP), formulated with a specialized cure system optimized for fast, efficient crosslinking. Its key distinguishing feature is enhanced resistance to aggressive automotive fluids—including modern low-viscosity engine oils, transmission fluids, and biofuel blends—combined with excellent compression set performance at elevated temperatures.

Q2: Is Tecnoflon FOR TF 838K suitable for dynamic sealing applications in high-temperature automotive environments?

A: Yes, it is specifically engineered for demanding dynamic sealing applications such as turbocharger hoses, fuel injector O-rings, and transmission valve body gaskets where continuous exposure to temperatures up to 200 °C and rapid thermal cycling are common. Its balanced processability and post-cure stability support consistent part geometry and long-term seal integrity under mechanical stress.

Q3: How does TF 838K compare to standard FKM grades in terms of processability and scorch safety?

A: TF 838K offers improved scorch safety during high-shear mixing and extrusion compared to many conventional peroxide-cured FKMs, allowing broader processing windows without premature vulcanization. It maintains good green strength and calendering behavior, facilitating efficient production of thin-section or complex-profile seals.

Q4: Can TF 838K be used in contact with biofuels such as E85 or biodiesel blends?

A: Yes—TF 838K demonstrates significantly improved resistance to swelling and degradation in ethanol-rich fuels (e.g., E85) and fatty acid methyl ester (FAME)-based biodiesels compared to standard FKM polymers, making it a preferred choice for next-generation fuel system components where long-term compatibility is critical.