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

Dow SILASTIC LS 5-8725 Fluorosilicone Rubber

Dow SILASTIC LS 5-8725 Fluorosilicone Rubber is a high-performance liquid silicone rubber from Dow’s SILASTIC LS series, offering exceptional resistance to fuels, oils, and extreme temperatures. It cures rapidly via platinum-catalyzed addition reaction, delivers excellent mechanical properties, and meets stringent aerospace and automotive sealing requirements.
  • dow silastic ls 5 8725 fluorosilicone rubber_d32ba682
  • dow silastic ls 5 8725 fluorosilicone rubber_d32ba682

Features Of Dow SILASTIC LS 5-8725 Fluorosilicone Rubber

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

  2. Outstanding low-temperature flexibility with continuous service capability down to –60 °C (–76 °F).

  3. Enhanced thermal stability for long-term performance at elevated temperatures up to 200 °C (392 °F).

  4. Good compression set resistance, maintaining sealing integrity under prolonged static compression.

  5. Ready-to-process liquid silicone rubber (LSR) formulation with platinum-catalyzed cure system.

Typical Applications Of Dow SILASTIC LS 5-8725 Fluorosilicone Rubber

  1. Aerospace fuel system seals, gaskets, and diaphragms exposed to jet fuels and hydraulic fluids.

  2. Automotive under-hood components requiring resistance to engine oils and transmission fluids.

  3. Oil & gas downhole instrumentation seals operating in sour gas and high-pressure hydrocarbon environments.

  4. High-reliability industrial sensors and actuators subjected to extreme thermal cycling and chemical exposure.

Specifications Of Dow SILASTIC LS 5-8725 Fluorosilicone Rubber

Chemical TypeFluorosilicone Rubber (FVMQ)
Product FormTwo-part liquid silicone rubber (Part A + Part B)
AppearancePale amber, translucent viscous liquids
Primary ApplicationsStatic and dynamic seals, gaskets, diaphragms, and molded elastomeric parts
Key FeaturesFuel/oil resistance, low-temperature flexibility, thermal stability, low compression set
Cure SystemPlatinum-catalyzed addition cure
Processing MethodLiquid injection molding (LIM), compression molding, or transfer molding
Shelf Life (Unopened, 25 °C)12 months from date of manufacture


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