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

Shin-Etsu FE-351-U Fluorosilicone Rubber

Shin-Etsu FE-351-U Fluorosilicone Rubber is a high-performance elastomer combining silicone flexibility with fluorocarbon chemical resistance. It offers exceptional thermal stability (–60°C to 200°C), low-temperature elasticity, and resistance to fuels, oils, solvents, and aerospace fluids. Widely used in seals, gaskets, and O-rings for aviation, automotive, and oilfield applications requiring reliability under extreme conditions.
  • shin etsu fe 351 u fluorosilicone rubber_4480db35
  • shin etsu fe 351 u fluorosilicone rubber_4480db35

Features Of Shin-Etsu FE-351-U Fluorosilicone Rubber

  1. Excellent resistance to fuels, lubricants, and aggressive hydrocarbon-based fluids.

  2. Broad operating temperature range from –60 °C to +200 °C with retained elasticity.

  3. Superior compression set resistance compared to standard silicone rubbers.

  4. Good electrical insulation properties across wide temperature and frequency ranges.

  5. Easy processability via extrusion, calendering, and injection molding for high-volume production.

Typical Applications Of Shin-Etsu FE-351-U Fluorosilicone Rubber

  1. Aerospace fuel system seals and gaskets.

  2. Automotive turbocharger hose liners and valve stem seals.

  3. Oil & gas downhole instrumentation O-rings and packers.

  4. High-performance industrial diaphragms for chemical metering pumps.

  5. Medical device components requiring solvent and sterilant resistance.

Specifications Of Shin-Etsu FE-351-U Fluorosilicone Rubber

Chemical TypeFluorosilicone elastomer (FVMQ)
Product FormUncured gum stock (sheet or roll)
AppearanceTranslucent to light amber, smooth surface
Primary ApplicationsDynamic and static sealing in harsh fluid environments
Key FeaturesFuel/oil resistance, thermal stability, low compression set
BenefitsExtended service life, reduced maintenance, compliance with aerospace and automotive specifications
Curing SystemPeroxide-curable (requires post-cure for optimal performance)
Shelf Life (Unopened, 25 °C)12 months


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