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

Shin-Etsu KE-5620W-U Silicone Rubber

Shin-Etsu KE-5620W-U is a high-performance addition-cure liquid silicone rubber featuring excellent transparency, low viscosity, and outstanding thermal stability. Ideal for precision molding of optical lenses, medical devices, and LED encapsulation, it offers rapid cure without by-products and superior adhesion to various substrates.
  • shin etsu ke 5620w u silicone rubber_1324763c
  • shin etsu ke 5620w u silicone rubber_1324763c

Features Of Shin-Etsu KE-5620W-U Silicone Rubber

  1. Two-part, addition-cure liquid silicone rubber with ultra-low viscosity for excellent flow and mold-filling capability.

  2. Platinum-catalyzed system offering exceptional thermal stability and long-term reliability after curing.

  3. Low shrinkage and high dimensional stability, ensuring precision replication of fine mold details.

  4. Excellent electrical insulation properties and resistance to moisture, ozone, and UV exposure.

  5. RoHS-compliant formulation with no peroxide byproducts—ideal for medical and electronic applications requiring high purity.

Typical Applications Of Shin-Etsu KE-5620W-U Silicone Rubber

  1. Encapsulation and potting of sensitive electronic components including sensors, connectors, and PCBs.

  2. Manufacturing of high-precision medical device parts such as catheter components and diagnostic housings.

  3. Soft-touch overmolding for consumer electronics, automotive interior trim, and wearable devices.

  4. Prototyping and low-volume production of flexible seals, gaskets, and microfluidic devices.

  5. Optical bonding and light-diffusing elements in LED lighting and display modules.

Specifications Of Shin-Etsu KE-5620W-U Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-component liquid (Part A + Part B)
Appearance (Uncured)Clear, low-viscosity liquids (Part A: colorless; Part B: pale yellow)
Mixing Ratio (A:B)1:1 by weight
Cure Condition (Standard)150°C for 5 minutes or room temperature for 24 hours (with catalyst acceleration)
Hardness (Shore A)60 ± 3
Tensile Strength8.0 MPa (typical, cured at 150°C)
Elongation at Break250% (typical, cured at 150°C)


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