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

Dow SILASTIC SE 4707 U Silicone Rubber

Dow SILASTIC SE 4707 U is a high-transparency, platinum-cured liquid silicone rubber (LSR) from Dow’s SILASTIC medical-grade portfolio—offering excellent biocompatibility, thermal stability, and low compression set for demanding healthcare and wearable device applications.
  • dow silastic se 4707 u silicone rubber_d5f4038a
  • dow silastic se 4707 u silicone rubber_d5f4038a

Features Of Dow SILASTIC SE 4707 U Silicone Rubber

  1. High tear strength and excellent elongation for demanding dynamic sealing applications.

  2. Outstanding resistance to compression set, maintaining seal integrity over extended service life.

  3. Good processability in liquid injection molding (LIM) and compression molding operations.

  4. UL 94 HB flame retardancy without halogenated additives, supporting safer material handling.

  5. Biocompatibility compliant with ISO 10993-5 and USP Class VI testing protocols.

Typical Applications Of Dow SILASTIC SE 4707 U Silicone Rubber

  1. Medical device components including respiratory masks, tubing connectors, and drug delivery seals.

  2. Automotive under-hood gaskets and vibration-damping mounts exposed to thermal cycling.

  3. Consumer electronics enclosures and protective seals requiring soft-touch feel and environmental stability.

  4. Food-grade contact parts such as pump diaphragms and beverage dispensing valves.

Specifications Of Dow SILASTIC SE 4707 U Silicone Rubber

Chemical TypePlatinum-cured liquid silicone rubber (LSR)
Product FormTwo-part liquid system (Part A + Part B)
AppearancePale translucent viscous liquid (Part A); colorless to pale yellow liquid (Part B)
Shore A Hardness (Cured)40 ± 3
Tensile Strength (Cured)8.0–9.5 MPa
Elongation at Break (Cured)550–650 %
Cure Temperature Range110–160 °C
Primary ApplicationsMedical, automotive, consumer electronics, food processing


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