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

Dow DOWSIL SC 4476 CV Silicone Rubber

Dow DOWSIL SC 4476 CV Silicone Rubber is a high-performance, addition-cure liquid silicone rubber offering excellent flow, low viscosity, and rapid room-temperature vulcanization. Ideal for precision molding of medical devices, seals, and gaskets, it delivers superior biocompatibility, thermal stability, and mechanical resilience with minimal shrinkage and consistent reproducibility across production cycles.
  • dow dowsil sc 4476 cv silicone rubber_03b5e056
  • dow dowsil sc 4476 cv silicone rubber_03b5e056

Features Of Dow DOWSIL SC 4476 CV Silicone Rubber

  1. High-consistency, addition-cure silicone rubber with excellent processability in compression and transfer molding.

  2. Outstanding thermal stability and long-term performance at elevated temperatures up to 200 °C.

  3. Low compression set and superior resilience for demanding sealing and dynamic gasket applications.

  4. Excellent electrical insulation properties and resistance to ozone, UV, and weathering.

  5. Meets UL 94 V-0 flammability rating for enhanced safety in electronic and automotive components.

Typical Applications Of Dow DOWSIL SC 4476 CV Silicone Rubber

  1. Automotive engine gaskets and vibration-damping mounts.

  2. Electrical and electronic encapsulation for power modules and connectors.

  3. Industrial sealing systems requiring high-temperature resistance and dimensional stability.

  4. Medical device components compliant with ISO 10993 biocompatibility requirements (when fully cured).

  5. Appliance seals and thermal interface materials in HVAC and cooking equipment.

Specifications Of Dow DOWSIL SC 4476 CV Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-part compound (Part A + Part B)
AppearanceOpaque, dough-like consistency; Part A: white; Part B: translucent gray
Primary ApplicationsHigh-temperature gaskets, electrical encapsulation, industrial seals
Key FeaturesLow compression set, excellent thermal aging resistance, good flow control
BenefitsReduced part warpage, extended service life in harsh environments, consistent mold fill
Curing MethodHeat-cured (typically 150–180 °C for 5–15 minutes)
Shelf Life12 months at ≤25 °C in unopened original packaging


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