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High resistance to aggressive automotive fluids including modern low-viscosity engine oils and biofuel blends.
Excellent thermal stability up to 200 °C for extended service life in high-temperature sealing environments.
Superior compression set resistance, maintaining sealing integrity after prolonged exposure to heat and stress.
Outstanding resistance to hydrolysis and steam, enabling reliable performance in demanding under-hood and powertrain applications.
Optimized processability for injection molding and compression molding, supporting high-volume manufacturing efficiency.
Engine valve stem seals and turbocharger hose couplings in passenger and commercial vehicles.
Fuel system components such as high-pressure fuel pump seals and common rail injector O-rings.
Transmission and differential oil seals exposed to synthetic lubricants and elevated temperatures.
Exhaust gas recirculation (EGR) system gaskets and diaphragms in diesel and hybrid powertrains.
Under-hood fluid handling seals in electric vehicle thermal management systems.
| Chemical Type | Fluoroelastomer (FKM), vinylidene fluoride–hexafluoropropylene–tetrafluoroethylene terpolymer |
| Product Form | Unvulcanized compound in sheet or pellet form |
| Appearance | Black, homogeneous elastomeric material |
| Primary Applications | Dynamic and static seals in automotive powertrain and fluid systems |
| Key Features | High fluorine content (~68 wt%), low compression set, excellent fluid resistance |
| Processing Method | Suitable for injection molding, compression molding, and transfer molding |
| Curing System | Diamine-cured formulation for optimal thermal and mechanical performance |
| Standard Compliance | Meets ASTM D1418 and SAE J200 classifications for FKM elastomers |
Q1: What distinguishes Tecnoflon FOR 5361 from other FKM elastomers?
A: Tecnoflon FOR 5361 is a peroxide-curable, low-temperature FKM elastomer specifically engineered for enhanced flexibility and compression set resistance at sub-zero temperatures, while retaining strong resistance to aggressive chemicals, oils, and high-temperature aging typical of standard FKMs.
Q2: Is Tecnoflon FOR 5361 suitable for dynamic sealing applications in automotive or aerospace systems?
A: Yes — its balanced combination of low-temperature resilience, excellent mechanical recovery, and resistance to modern synthetic lubricants and brake fluids makes it well-suited for dynamic seals such as valve stem seals, turbocharger hoses, and fuel system components where repeated flexing and thermal cycling occur.
Q3: How does the peroxide cure system affect processing and final part performance?
A: The peroxide-curable chemistry enables high crosslink density without acid acceptors, resulting in superior compression set, thermal stability, and extractable-free performance — particularly beneficial for applications requiring long-term reliability under continuous heat exposure. Processing requires careful control of scorch safety and cure temperature profiles.
Q4: Can Tecnoflon FOR 5361 be compounded with standard FKM fillers and processing aids?
A: Yes — it is compatible with conventional carbon blacks, calcium carbonate, and non-acidic processing aids used in FKM formulations. However, filler selection and dispersion must be optimized to maintain low-temperature flexibility and avoid compromising peroxide cure efficiency.
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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
