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

Shin-Etsu KE-9490-U Silicone Rubber

Shin-Etsu KE-9490-U is a high-performance liquid silicone rubber (LSR) from Shin-Etsu’s KE-9490 series, featuring ultra-low viscosity, excellent thermal stability, and rapid cure kinetics. Ideal for precision injection molding of medical devices, seals, and automotive components, it offers superior biocompatibility, low compression set, and consistent reproducibility across high-volume production runs.
  • shin etsu ke 9490 u silicone rubber_e2a46a75
  • shin etsu ke 9490 u silicone rubber_e2a46a75

Features Of Shin-Etsu KE-9490-U Silicone Rubber

  1. High-transparency, platinum-cured liquid silicone rubber (LSR) with excellent optical clarity and low haze.

  2. Ultra-low compression set for long-term sealing performance under repeated mechanical stress.

  3. Excellent biocompatibility compliant with ISO 10993-5 and USP Class VI requirements.

  4. Outstanding thermal stability — maintains physical properties from –60 °C to +200 °C.

  5. Low viscosity before curing, enabling precise injection molding of thin-walled and complex geometries.

Typical Applications Of Shin-Etsu KE-9490-U Silicone Rubber

  1. Medical-grade tubing and catheters requiring clarity, flexibility, and sterilization resistance.

  2. Optical lenses and light-guiding components in diagnostic and therapeutic devices.

  3. Seals and gaskets for implantable and wearable medical electronics.

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

  5. Pharmaceutical processing parts exposed to steam sterilization (SIP) and autoclaving.

Specifications Of Shin-Etsu KE-9490-U Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-part liquid system (Part A: base, Part B: catalyst)
AppearanceColorless to pale yellow transparent liquid
Shore A Hardness (cured)40 ± 2
Tensile Strength (cured)8.0 MPa min
Elongation at Break (cured)550% min
Curing Temperature Range110–170 °C (time-dependent)
BiocompatibilityISO 10993-5, ISO 10993-10, USP Class VI certified


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *