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

Shin-Etsu KE-2017-40A/B Silicone Rubber

Shin-Etsu KE-2017-40A/B is a two-part addition-cure liquid silicone rubber offering excellent flow, low viscosity, and high thermal stability. It cures rapidly at room or elevated temperatures with precise 1:1 mix ratio. Ideal for precision molding, encapsulation, and medical device fabrication due to its biocompatibility, low shrinkage, and superior mechanical resilience after vulcanization.
  • shin etsu ke 2017 40a b silicone rubber_342f7283
  • shin etsu ke 2017 40a b silicone rubber_342f7283

Features Of Shin-Etsu KE-2017-40A/B Silicone Rubber

  1. Two-part, addition-cure liquid silicone rubber system offering excellent processability and low viscosity for easy mixing and degassing.

  2. High thermal stability with long-term serviceability over a wide temperature range (–60 °C to +200 °C).

  3. Outstanding electrical insulation properties and low dielectric loss, suitable for high-reliability electronic encapsulation.

  4. Excellent mechanical strength and elasticity after curing, with high tear resistance and elongation at break.

  5. Low compression set and superior resistance to aging, ozone, and UV exposure under ambient and elevated conditions.

Typical Applications Of Shin-Etsu KE-2017-40A/B Silicone Rubber

  1. Encapsulation and potting of power electronics, including IGBT modules and automotive inverters.

  2. Sealing and gasketing in demanding industrial and transportation equipment.

  3. Insulating components for renewable energy systems such as solar inverters and wind turbine controllers.

  4. Protective coatings and conformal coatings for PCBs requiring thermal cycling resilience.

  5. Soft-touch overmolding on metal or plastic substrates in medical and industrial devices.

Specifications Of Shin-Etsu KE-2017-40A/B Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber
Product FormTwo-component (Part A: base polymer + filler; Part B: crosslinker + catalyst)
Appearance (Uncured)Part A: translucent white viscous liquid; Part B: translucent colorless to pale yellow liquid
Mixing Ratio (A:B)10:1 by weight
Cure Condition (Standard)150 °C × 5 minutes or 100 °C × 30 minutes
Shore A Hardness (Cured)40 ± 2
Tensile Strength (Cured)≥ 6.0 MPa
Elongation at Break (Cured)≥ 250 %


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