English
Español
tiếng việt
русский
Excellent resistance to aggressive automotive fluids including modern low-SAPS engine oils and biofuels.
Outstanding high-temperature performance with continuous service capability up to 200 °C.
Superior compression set resistance, ensuring long-term sealing integrity under dynamic conditions.
Low permeability to gases and hydrocarbons, enhancing reliability in fuel and emission control systems.
Optimized processability for injection molding and compression molding of precision elastomeric components.
Fuel system seals and diaphragms in gasoline and diesel engines.
Emission control components including EGR valve seals and SCR system gaskets.
Under-hood sealing solutions exposed to hot oil, coolant, and exhaust gases.
High-performance O-rings and molded parts for turbocharger and transmission applications.
Seals for hybrid and electric vehicle powertrain cooling circuits requiring chemical stability.
| Chemical Type | Fluoroelastomer (FKM), terpolymer based on vinylidene fluoride, hexafluoropropylene, and tetrafluoroethylene |
| Product Form | Uncured gum stock in bale form |
| Appearance | Light tan to amber-colored solid rubber |
| Primary Applications | Automotive fluid sealing, high-temperature static and dynamic seals |
| Key Features | Heat resistance, chemical resistance, low compression set, good processability |
| Benefits | Extended service life, reduced maintenance, compliance with OEM specifications |
| Curing System Compatibility | Amine-cure and peroxide-cure formulations |
| Standard Compliance | Meets ASTM D1418 and ISO 1629 classifications for FKM |
Q1: What is the primary chemical resistance profile of Tecnoflon FOR 5351 U?
A: Tecnoflon FOR 5351 U is a peroxide-curable fluoroelastomer offering excellent resistance to aggressive hydrocarbons, aromatic solvents, and high-temperature oils—particularly suited for demanding automotive and industrial sealing applications where conventional elastomers degrade.
Q2: How does FOR 5351 U differ from standard FKM compounds in terms of processing behavior?
A: As a peroxide-curable grade, FOR 5351 U offers improved scorch safety and extended processing window compared to bisphenol-cured FKMs, enabling more stable extrusion and compression molding—especially beneficial for complex geometries and high-precision seals.
Q3: Is FOR 5351 U suitable for low-temperature dynamic sealing applications?
A: While fluorinated elastomers inherently exhibit higher glass transition temperatures, FOR 5351 U delivers balanced low-temperature flexibility for many static and moderately dynamic service conditions down to approximately –15 °C; performance at lower temperatures should be validated under actual application stress and media exposure.
Q4: Can FOR 5351 U be compounded with standard FKM fillers and processing aids?
A: Yes—FOR 5351 U is compatible with typical FKM-grade carbon blacks, calcium carbonate, and process oils; however, filler selection and curative system must be optimized for peroxide curing to ensure full crosslink density and avoid premature scorch or post-cure shrinkage.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
