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

Dow SILASTIC SE 4705 U Silicone Rubber

Dow SILASTIC SE 4705 U is a high-performance liquid silicone rubber (LSR) from Dow’s SILASTIC portfolio, designed for precision injection molding. It offers excellent thermal stability, low compression set, and biocompatibility per ISO 10993. Ideal for medical devices, seals, and automotive components requiring consistent flow and rapid cure.
  • dow silastic se 4705 u silicone rubber_8efe3e98
  • dow silastic se 4705 u silicone rubber_8efe3e98

Features Of Dow SILASTIC SE 4705 U Silicone Rubber

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

  2. UL 94 V-0 rated for flame resistance, supporting stringent safety requirements in electrical applications.

  3. Outstanding thermal stability, maintaining mechanical integrity from –60 °C to +200 °C continuously.

  4. Low compression set and superior long-term elasticity for reliable sealing and gasketing performance.

  5. Biocompatibility aligned with ISO 10993–5 and USP Class VI testing protocols.

Typical Applications Of Dow SILASTIC SE 4705 U Silicone Rubber

  1. Electrical insulation components for power distribution systems and EV charging infrastructure.

  2. Seals and gaskets in aerospace hydraulic and pneumatic systems requiring wide-temperature resilience.

  3. Medical device housings and enclosures where biocompatibility and sterilization resistance are critical.

  4. Automotive under-hood sensors and connectors exposed to high heat and chemical exposure.

  5. Industrial control enclosures requiring UL recognition and environmental sealing integrity.

Specifications Of Dow SILASTIC SE 4705 U Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormHigh-consistency gum stock (uncured compound)
AppearanceOpaque, uniform beige-colored sheet or slab
Primary ApplicationsSealing, gasketing, electrical insulation, medical device components
Key FeaturesFlame retardant (UL 94 V-0), low compression set, wide service temperature range
BenefitsReduced post-molding trimming, consistent part-to-part dimensional stability, compatibility with automated molding processes
Curing SystemHeat-activated platinum catalysis; typical cure: 170 °C for 5–10 minutes
Regulatory ComplianceISO 10993–5 (cytotoxicity), USP Class VI, RoHS compliant


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