B. P. Chemicals supplies high-performance Fluoro silicone Rubber (FSR/FVMQ) ”The BDFS Series” sourced from our principal CGFSE, China, a leading global manufacturer of Fluoroelastomers and specialty silicone materials. FSR is engineered to close the performance gap between conventional silicone and FKM rubber, delivering a rare combination of extreme low-temperature flexibility and strong resistance to fuels and oils in a single elastomer.
What is Fluorosilicone Rubber (FSR) ?
Fluorosilicone rubber is a specialty elastomer built on a silicone backbone modified with trifluoro propyl groups. This molecular structure combines the wide-temperature-range flexibility that silicone is known for with the chemical inertness and fuel resistance associated with fluorine-based polymers. The result is a material that stays flexible and seals reliably even at temperatures as low as - 60°C, while resisting swelling and degradation on contact with gasoline, diesel, jet fuel, and mineral or silicone-based oils, conditions that would compromise a standard silicone compound.
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FSR compounds are peroxide-cured, giving them a robust, high-tear-strength network suitable for both static and dynamic sealing applications, and are processed via compression, transfer, injection, extrusion, and calendaring methods.
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Key Performance Advantages
Extreme Cold Flexibility
Retains sealing force and elastic memory down to - 60°C, preventing leaks during cold starts or high-altitude/sub-zero operation.
Strong Fuel & Oil Barrier
Offers excellent resistance to gasoline, jet fuel, diesel, and silicone-based oils, with markedly better volume-swell resistance than standard silicone rubber.
Wide Thermal Operating Range
Performs reliably from - 60°C to + 200°C, a range that few other elastomer families can match.
Excellent Weatherability
Highly resistant to ozone, UV exposure, and outdoor ageing, supporting long service life in exterior and under-hood applications.
Good Processability
Formulated for smooth moulding and extrusion with good mould release and flow, supporting low scrap rates and fine detail reproduction.
Why Choose FSR (FVMQ) from M/s. B. P. Chemicals?
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​Single-material solution
Where standard silicone swells in fuel and standard FKM stiffens in the cold, FSR removes that trade-off, simplifying material selection for demanding applications.
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Precision sealing capability
Good flow properties support fine, thin-wall parts such as micro O-rings and diaphragms used in fuel injection and sensing equipment.
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Reliable performance in static and dynamic use
Maintains structural integrity as both a stationary gasket and a moving valve seal under sustained pressure.
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Backed by an established supply relationship
M/s. B. P. Chemicals has been importing and distributing synthetic rubbers and specialty rubber chemicals since 1973, with direct principal relationships ensuring consistent quality and reliable lead times for the Indian market.
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