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

Shin-Etsu KE-870-U Silicone Rubber

Shin-Etsu KE-870-U is a high-performance addition-cure liquid silicone rubber (LSR) offering excellent flow, low viscosity, and superior thermal stability. It cures rapidly at room or elevated temperatures with minimal shrinkage, delivering outstanding mechanical strength, electrical insulation, and biocompatibility—ideal for precision molding in medical devices, electronics encapsulation, and automotive sensors.
  • shin etsu ke 870 u silicone rubber_c8ca0b38
  • shin etsu ke 870 u silicone rubber_c8ca0b38

Features Of Shin-Etsu KE-870-U Silicone Rubber

  1. High-transparency, addition-cure liquid silicone rubber (LSR) with excellent optical clarity and low haze.

  2. Outstanding thermal stability and long-term aging resistance from −50 °C to 200 °C.

  3. Low compression set and superior elasticity for durable sealing and cushioning performance.

  4. Biocompatibility compliant with ISO 10993-5 and USP Class VI (tested per standard protocols).

  5. Excellent flow characteristics and rapid cure profile suitable for high-precision injection molding.

Typical Applications Of Shin-Etsu KE-870-U Silicone Rubber

  1. Medical-grade tubing and fluid-handling components for diagnostic and therapeutic devices.

  2. Optically clear seals and gaskets in LED lighting and automotive sensor housings.

  3. Soft-touch overmolding for wearable health monitors and portable medical electronics.

  4. Microfluidic device components requiring dimensional stability and chemical inertness.

  5. Pharmaceutical stoppers and elastomeric closures for parenteral drug delivery systems.

Specifications Of Shin-Etsu KE-870-U Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber
Product FormTwo-component (Part A + Part B), viscous liquid
AppearanceColorless to pale yellow transparent liquid
Shore A Hardness (Cured)70 ± 2
Tensile Strength (Cured)8.5 MPa (ASTM D412)
Elongation at Break (Cured)≥250% (ASTM D412)
Density (Uncured)1.12 g/cm³ (25 °C)
Cure Temperature Range110–160 °C (time-dependent)


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