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

Dow SILASTIC LS 4-9080 Fluorosilicone Rubber

Dow SILASTIC LS 4-9080 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 catalysis, delivers excellent compression set resistance, and meets aerospace and automotive sealing requirements. Ideal for demanding elastomeric applications requiring fluorosilicone durability and process efficiency.
  • dow silastic ls 4 9080 fluorosilicone rubber_ba53da3b
  • dow silastic ls 4 9080 fluorosilicone rubber_ba53da3b

Features Of Dow SILASTIC LS 4-9080 Fluorosilicone Rubber

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

  2. Outstanding low-temperature flexibility down to –60 °C with retained elastomeric performance.

  3. Superior compression set resistance compared to standard silicone rubbers, ensuring long-term sealing integrity.

  4. Good electrical insulation properties stable over time and under thermal cycling conditions.

  5. Processable via conventional high-temperature vulcanization (HTV) methods including compression, transfer, and injection molding.

Typical Applications Of Dow SILASTIC LS 4-9080 Fluorosilicone Rubber

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

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

  3. Oil and gas downhole instrumentation seals subjected to sour gas and aromatic hydrocarbons.

  4. Military-grade connectors and enclosures demanding extreme environmental resilience.

  5. Specialty industrial hoses and diaphragms handling aggressive solvents and chlorinated media.

Specifications Of Dow SILASTIC LS 4-9080 Fluorosilicone Rubber

Chemical TypeFluorosilicone elastomer (FVMQ)
Product FormHigh-temperature vulcanizing (HTV) gum compound
AppearancePale amber translucent gum sheet or roll
Primary ApplicationsStatic and dynamic seals, gaskets, diaphragms, and molded parts
Key FeaturesFuel/oil resistance, low-temperature flexibility, compression set resistance
BenefitsExtended service life in harsh chemical environments, reliable sealing at extreme temperatures
Curing SystemPeroxide-curable (requires post-cure for optimal properties)
Shelf Life12 months when stored at ≤25 °C in original packaging


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