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

Shin-Etsu KE-9690-U Silicone Rubber

Shin-Etsu KE-9690-U is a high-performance addition-cure liquid silicone rubber featuring excellent transparency, low compression set, and outstanding thermal stability. Designed for precision molding of medical devices and optical components, it offers superior biocompatibility (ISO 10993), low viscosity, and rapid cure at room or elevated temperatures. Ideal for LSR injection molding applications requiring consistency and reliability.
  • shin etsu ke 9690 u silicone rubber_75140e3c
  • shin etsu ke 9690 u silicone rubber_75140e3c

Features Of Shin-Etsu KE-9690-U Silicone Rubber

  1. High-transparency, optically clear formulation ideal for light-transmissive components.

  2. Excellent thermal stability with continuous service temperature range from −60 °C to +200 °C.

  3. Low compression set and superior elasticity retention after prolonged thermal aging.

  4. Platinum-catalyzed addition-cure system offering precise control over cure kinetics and minimal by-products.

  5. UL 94 V-0 rated for flame resistance, meeting stringent safety requirements in electronics and transportation.

Typical Applications Of Shin-Etsu KE-9690-U Silicone Rubber

  1. LED encapsulation and optical lenses for automotive lighting systems.

  2. Sealing gaskets and protective boots in high-reliability aerospace sensors.

  3. Medical device housings requiring biocompatibility (ISO 10993 tested) and sterilization resistance.

  4. Thermal interface materials (TIMs) for power electronics and EV battery modules.

  5. Transparent potting compounds for outdoor photovoltaic junction boxes and smart metering enclosures.

Specifications Of Shin-Etsu KE-9690-U Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-component liquid (Part A: base, Part B: catalyst)
AppearanceWater-white, low-viscosity liquid
Shore A Hardness (Cured, 7 days @ 25 °C)40 ± 3
Tensile Strength (ASTM D412)8.5 MPa min
Elongation at Break (ASTM D412)450% min
Volume Resistivity (ASTM D257)1.0 × 10¹⁵ Ω·cm
UL RecognitionUL 94 V-0, UL 746C (RTI Elec./Mech./Imp.)


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