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

Shin-Etsu KE-971-U Silicone Rubber

Shin-Etsu KE-971-U is a high-performance liquid silicone rubber (LSR) from Shin-Etsu’s KE-970 series, featuring excellent thermal stability, low compression set, and rapid platinum-catalyzed curing. Ideal for precision injection molding of medical devices, automotive seals, and consumer electronics components requiring biocompatibility and dimensional consistency.
  • shin etsu ke 971 u silicone rubber_56fbbcf3
  • shin etsu ke 971 u silicone rubber_56fbbcf3

Features Of Shin-Etsu KE-971-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 up to 180 °C continuous use.

  3. Low compression set and superior elasticity for reliable sealing and dynamic gasket performance.

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

  5. Excellent flow characteristics and low viscosity for precise injection molding of intricate, thin-walled parts.

Typical Applications Of Shin-Etsu KE-971-U Silicone Rubber

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

  2. Optically clear seals and light-diffusing elements in LED lighting and automotive lighting systems.

  3. Sealing gaskets and vibration-damping pads in precision electronics and wearable medical devices.

  4. Soft-touch overmolding for ergonomic handles and housings in healthcare and consumer appliances.

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

Specifications Of Shin-Etsu KE-971-U Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber
Product FormTwo-part liquid (Part A + Part B), supplied separately
AppearanceColorless, transparent viscous liquid
Shore A Hardness (Cured, 23°C, 7 days)40 ± 3
Tensile Strength (ASTM D412)8.0 MPa min
Elongation at Break (ASTM D412)450% min
Density (23°C)1.12 g/cm³ typical
Curing Condition150°C × 5 min (or equivalent time–temperature profile)


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