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

Dow SILASTIC SE 1561 U Fluorosilicone Rubber

Dow SILASTIC SE 1561 U Fluorosilicone Rubber is a high-performance liquid silicone rubber offering exceptional resistance to fuels, oils, and extreme temperatures (–60°C to +200°C). It cures rapidly via platinum-catalyzed addition reaction, delivers excellent mechanical properties, low compression set, and superior chemical stability—ideal for demanding aerospace, automotive, and oilfield sealing applications.
  • dow silastic se 1561 u fluorosilicone rubber_ad0511e4
  • dow silastic se 1561 u fluorosilicone rubber_ad0511e4

Features Of Dow SILASTIC SE 1561 U Fluorosilicone Rubber

  1. Excellent resistance to fuels, oils, and aggressive hydrocarbon-based fluids across a wide temperature range.

  2. Superior high-temperature stability with continuous service capability up to 200 °C.

  3. Low compression set retention for reliable sealing performance under prolonged thermal and mechanical stress.

  4. Good low-temperature flexibility down to –40 °C without significant loss of elasticity.

  5. Enhanced chemical resistance compared to standard silicone elastomers, particularly against aromatic and chlorinated solvents.

Typical Applications Of Dow SILASTIC SE 1561 U Fluorosilicone Rubber

  1. Aerospace fuel system seals and gaskets exposed to jet fuels (e.g., JP-8, Jet A) and hydraulic fluids.

  2. Automotive turbocharger hose couplings and sensor seals operating in high-heat under-hood environments.

  3. Oil & gas downhole instrumentation seals requiring resistance to sour gas (H₂S), crude oil, and drilling fluids.

  4. Military-grade electronic enclosures and connector seals subject to extreme thermal cycling and fuel exposure.

  5. Pharmaceutical processing equipment gaskets compatible with cleaning agents and sterilization cycles.

Specifications Of Dow SILASTIC SE 1561 U Fluorosilicone Rubber

Chemical TypeFluorosilicone elastomer (FVMQ)
Product FormUncured gum stock (high-consistency rubber)
AppearanceOff-white to light amber translucent sheet or slab
Primary ApplicationsStatic and dynamic seals, gaskets, diaphragms, and molded components
Key FeaturesFuel/oil resistance, thermal stability, low compression set, broad service temperature range
Processing MethodCompression or transfer molding; requires platinum-catalyzed cure system
Cure SystemPlatinum-based addition cure (no peroxide or tin catalysts)
Shelf Life12 months at ≤25 °C in original sealed packaging


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