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High fluorine content (~68–70 wt%) delivering exceptional resistance to aggressive chemicals, including acids, bases, and polar solvents.
Excellent high-temperature performance with continuous service capability up to 200 °C and short-term resistance to 230 °C.
Outstanding compression set resistance, ensuring long-term sealing integrity under dynamic and static conditions.
Good processability on standard rubber equipment, enabling efficient extrusion, molding, and calendering operations.
Low gas permeability and superior resistance to swelling in hydrocarbon fuels and lubricants.
Aerospace fuel system seals and O-rings exposed to jet fuels and hydraulic fluids.
Automotive powertrain components, including turbocharger hoses, valve stem seals, and transmission gaskets.
Chemical processing equipment seals, diaphragms, and linings for pumps and valves handling corrosive media.
Oil & gas downhole elastomeric parts subjected to sour gas (H₂S), high pressure, and elevated temperatures.
Semiconductor manufacturing fluid handling systems requiring ultra-low particle generation and plasma resistance.
| Chemical Type | Fluoroelastomer (FKM), vinylidene fluoride (VDF)/hexafluoropropylene (HFP)/tetrafluoroethylene (TFE) terpolymer |
| Product Form | Unvulcanized gum stock in bale form |
| Appearance | Light tan to beige, homogeneous sheet or slab |
| Primary Applications | Static and dynamic seals, gaskets, diaphragms, hoses |
| Key Features | High fluorine content, excellent thermal stability, low compression set |
| Benefits | Extended service life in harsh chemical/thermal environments, reduced maintenance frequency |
| Processing Method | Conventional rubber processing: mixing, extrusion, compression/injection molding |
Q1: What distinguishes Tecnoflon TN 50A from other FKM elastomers in terms of processability and cure characteristics?
A: Tecnoflon TN 50A is a low-viscosity, peroxide-curable fluoroelastomer designed for enhanced processability—particularly in high-shear mixing and extrusion. Its formulation enables faster scorch safety and more consistent crosslink density development compared to conventional bisphenol-cured FKMs, supporting efficient compression, transfer, and injection molding.
Q2: Is Tecnoflon TN 50A suitable for applications requiring resistance to aggressive automotive fluids and elevated temperatures?
A: Yes—TN 50A delivers excellent resistance to modern engine oils, transmission fluids, brake fluids (including DOT 4/5.1), and biofuels, even under continuous service at temperatures up to 200 °C. Its high fluorine content and optimized polymer architecture contribute to superior thermal and chemical stability in demanding powertrain sealing environments.
Q3: How does TN 50A perform in dynamic sealing applications such as shaft seals or valve stem seals?
A: Due to its balanced combination of low compression set, good resilience, and controlled frictional behavior, TN 50A is well-suited for dynamic sealing where low wear and stable sealing force retention are critical. It maintains dimensional stability and surface integrity under repeated mechanical stress and thermal cycling.
Q4: Can Tecnoflon TN 50A be compounded with standard FKM fillers and processing aids?
A: Yes—TN 50A is compatible with typical FKM compounding ingredients, including carbon black, calcium carbonate, and proprietary processing aids. However, filler selection and dispersion protocols should be optimized to preserve its low-viscosity advantage and ensure uniform peroxide distribution during mixing.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
