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

Shin-Etsu KE-571-U Silicone Rubber

Shin-Etsu KE-571-U is a high-performance platinum-cured liquid silicone rubber (LSR) offering excellent thermal stability, low compression set, and superior electrical insulation. Ideal for precision molding of medical devices, automotive seals, and electronics components, it cures rapidly at elevated temperatures with minimal byproducts and outstanding dimensional consistency across demanding industrial applications.
  • shin etsu ke 571 u silicone rubber_2c9f63bd
  • shin etsu ke 571 u silicone rubber_2c9f63bd

Features Of Shin-Etsu KE-571-U Silicone Rubber

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

  2. Outstanding thermal stability, maintaining mechanical integrity from –50 °C to +200 °C.

  3. Low compression set and superior elasticity for long-term sealing and dynamic gasket performance.

  4. Biocompatibility compliant with ISO 10993-5 and USP Class VI, suitable for medical-grade applications.

  5. Excellent flow characteristics and fast cure profile, optimized for high-precision injection molding processes.

Typical Applications Of Shin-Etsu KE-571-U Silicone Rubber

  1. Medical tubing and fluid-handling components for diagnostic and drug delivery devices.

  2. Optical light guides and transparent seals in LED lighting and sensor housings.

  3. Pharmaceutical stoppers and elastomeric closures requiring extractables control.

  4. Miniaturized wearable health sensors requiring skin-contact-safe, flexible encapsulation.

  5. Automotive cabin sensors and interior lighting gaskets demanding UV resistance and dimensional stability.

Specifications Of Shin-Etsu KE-571-U Silicone Rubber

Chemical TypePlatinum-cured Liquid Silicone Rubber (LSR)
Product FormTwo-part liquid system (Part A: base, Part B: catalyst)
AppearanceWater-white, low-viscosity liquid
Shore A Hardness (Cured, 23°C)50 ± 3
Tensile Strength (Cured)≥ 6.0 MPa
Elongation at Break (Cured)≥ 450 %
Primary ApplicationsMedical devices, optical components, precision molded seals
Key FeaturesTransparency, biocompatibility, thermal resilience, low extractables


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

Your Name *

Your Email *

Your Phone

Country

Your Message *