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

Shin-Etsu KE-1987A/B Silicone Rubber

Shin-Etsu KE-1987A/B is a two-part addition-cure liquid silicone rubber renowned for excellent thermal stability, low compression set, and precise replication in precision molding. Ideal for medical devices, seals, and automotive gaskets, it offers outstanding biocompatibility (ISO 10993), flame resistance (UL94 V-0), and consistent flow with minimal shrinkage.
  • shin etsu ke 1987a b silicone rubber_d078fec3
  • shin etsu ke 1987a b silicone rubber_d078fec3

Features Of Shin-Etsu KE-1987A/B Silicone Rubber

  1. Two-part addition-cure silicone system with excellent storage stability and long pot life.

  2. Low viscosity before curing, enabling easy mixing, degassing, and mold filling for complex geometries.

  3. High thermal stability and consistent mechanical properties over a wide temperature range (–60 °C to +200 °C).

  4. Excellent electrical insulation performance with low dielectric loss and high volume resistivity.

  5. Minimal shrinkage and outstanding dimensional stability after heat curing.

Typical Applications Of Shin-Etsu KE-1987A/B Silicone Rubber

  1. Encapsulation and potting of electronic components including sensors, PCBs, and power modules.

  2. Manufacturing of high-reliability gaskets and seals for automotive engine control units and EV battery systems.

  3. Prototyping and low-volume production of precision silicone parts via soft-tooling and vacuum casting.

  4. Insulating coatings and protective layers for LED lighting assemblies and photovoltaic connectors.

  5. Medical device components requiring biocompatibility-compliant materials (ISO 10993 tested formulations available upon request).

Specifications Of Shin-Etsu KE-1987A/B Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-component liquid (Part A: base polymer + filler; Part B: crosslinker + catalyst)
Appearance (Uncured)Part A: translucent off-white viscous liquid; Part B: translucent colorless to pale yellow liquid
Mixing Ratio (A:B by weight)10:1
Cure Conditions25 °C × 24 h or 80 °C × 30 min
Hardness (Shore A, cured)55 ± 5
Tensile Strength (cured)≥ 5.0 MPa
Elongation at Break (cured)≥ 200 %


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