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

Dow SILASTIC SE 4708 U Silicone Rubber

Dow SILASTIC SE 4708 U is a high-strength, platinum-cured liquid silicone rubber (LSR) offering excellent flow, low viscosity, and outstanding thermal stability. Ideal for precision injection molding of medical devices, seals, and automotive components, it delivers superior biocompatibility, tear resistance, and consistent cure performance across complex geometries.
  • dow silastic se 4708 u silicone rubber_d2a1a75c
  • dow silastic se 4708 u silicone rubber_d2a1a75c

Features Of Dow SILASTIC SE 4708 U Silicone Rubber

  1. High-transparency, platinum-cured liquid silicone rubber (LSR) with excellent optical clarity and UV stability.

  2. Low viscosity for superior mold fill and intricate part replication, ideal for thin-walled and high-precision components.

  3. Biocompatibility tested per ISO 10993-5 and USP Class VI, suitable for medical device applications.

  4. Fast cure profile at elevated temperatures, enabling high-throughput injection molding production.

  5. Excellent thermal stability across –60 °C to +200 °C with minimal compression set and long-term aging resistance.

Typical Applications Of Dow SILASTIC SE 4708 U Silicone Rubber

  1. Medical-grade seals, gaskets, and fluid-contact components for drug delivery devices.

  2. Optically clear housings and light guides in LED lighting and automotive interior lighting systems.

  3. Wearable sensor encapsulation and flexible electronic interfaces requiring transparency and skin compatibility.

  4. Consumer healthcare devices including respiratory masks, pump diaphragms, and infusion connectors.

  5. Miniaturized microfluidic components and lab-on-a-chip device enclosures.

Specifications Of Dow SILASTIC SE 4708 U Silicone Rubber

Chemical TypePlatinum-cured Liquid Silicone Rubber (LSR)
Product FormTwo-component (Part A + Part B), flowable liquid
AppearanceClear, viscous liquid (Part A); clear, low-viscosity catalyst (Part B)
Shore A Hardness (Cured, 23 °C)40 ± 3
Tensile Strength (ASTM D412)8.5 MPa (typical)
Elongation at Break (ASTM D412)550% (typical)
Cure Temperature Range110–160 °C
Primary ApplicationsMedical devices, optical components, wearable electronics, precision molded parts


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