Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Shin-Etsu FE-451-U Fluorosilicone Rubber

Shin-Etsu FE-451-U is a high-performance fluorosilicone rubber offering exceptional resistance to fuels, oils, and extreme temperatures (–60°C to 200°C). It combines silicone flexibility with fluorocarbon chemical stability, enabling reliable sealing in aerospace and automotive applications. This FDA-compliant compound cures rapidly via platinum catalysis and exhibits low compression set and superior weathering resistance.
  • shin etsu fe 451 u fluorosilicone rubber_a2ffa5d9
  • shin etsu fe 451 u fluorosilicone rubber_a2ffa5d9

Features Of Shin-Etsu FE-451-U Fluorosilicone Rubber

  1. Excellent resistance to fuels, oils, and aggressive organic solvents including jet fuel (JP-8), diesel, and aromatic hydrocarbons.

  2. Outstanding high-temperature stability with continuous service capability up to 200 °C and short-term exposure to 230 °C.

  3. Superior low-temperature flexibility down to –60 °C, maintaining elastomeric performance in extreme cold environments.

  4. Good compression set resistance, ensuring long-term sealing integrity under dynamic and static conditions.

  5. Enhanced weathering and ozone resistance compared to standard silicone rubbers, suitable for outdoor and aerospace applications.

Typical Applications Of Shin-Etsu FE-451-U Fluorosilicone Rubber

  1. Aerospace fuel system seals, gaskets, and O-rings exposed to aviation fuels and wide thermal cycling.

  2. Automotive turbocharger hose liners and under-hood sealing components requiring oil and heat resistance.

  3. Industrial fluid handling systems for chemical processing equipment operating with aggressive solvents.

  4. Defense and marine applications involving exposure to hydraulic fluids, lubricants, and salt-laden environments.

  5. High-reliability sealing solutions in semiconductor manufacturing tooling exposed to plasma and cleaning agents.

Specifications Of Shin-Etsu FE-451-U Fluorosilicone Rubber

Chemical TypeFluorosilicone elastomer (FVMQ)
Product FormUncured gum stock (high-consistency rubber)
AppearanceLight amber to pale yellow translucent compound
Primary ApplicationsStatic and dynamic seals, gaskets, diaphragms, and molded parts
Key FeaturesFuel/oil resistance, wide service temperature range, low compression set
Processing MethodCompression or transfer molding; compatible with platinum-cure systems
Curing SystemPlatinum-based addition cure (requires inhibition-free environment)
Shelf Life (Unopened, 25 °C)12 months from date of manufacture


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