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

Shin-Etsu CHN-LIMS-20A/B Silicone Rubber

Shin-Etsu CHN-LIMS-20A/B is a high-performance addition-cure liquid silicone rubber from Shin-Etsu’s CHN-LIMS series, designed for precision medical device molding and biocompatible applications. It offers excellent flowability, low shrinkage, rapid cure at room temperature, and meets ISO 10993 and USP Class VI standards.
  • shin etsu chn lims 20a b silicone rubber_090e3937
  • shin etsu chn lims 20a b silicone rubber_090e3937

Features Of Shin-Etsu CHN-LIMS-20A/B Silicone Rubber

  1. Two-part, platinum-catalyzed liquid silicone rubber system with excellent flowability and low viscosity for precise mold filling.

  2. Fast room-temperature vulcanization (RTV) with adjustable pot life and cure speed via catalyst dosage control.

  3. Outstanding thermal stability and long-term reliability over a wide service temperature range (–60 °C to +200 °C).

  4. Low compression set and high elasticity retention after repeated deformation or extended aging.

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

Typical Applications Of Shin-Etsu CHN-LIMS-20A/B Silicone Rubber

  1. Medical device components including seals, gaskets, tubing connectors, and wearable sensor housings.

  2. Consumer electronics encapsulation and protective gaskets for smartphones, wearables, and IoT devices.

  3. Automotive interior parts requiring flame retardancy, low volatility, and dimensional stability.

  4. Food-contact approved seals and gaskets for kitchen appliances and beverage dispensing systems.

  5. Industrial fluid-handling components such as diaphragms, valves, and pump membranes.

Specifications Of Shin-Etsu CHN-LIMS-20A/B Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-component system: Part A (base polymer), Part B (catalyst)
AppearancePart A: Transparent to translucent viscous liquid; Part B: Light yellow viscous liquid
Shore A Hardness (Cured)20 ± 2
Tensile Strength (ASTM D412)≥ 5.0 MPa
Elongation at Break (ASTM D412)≥ 500 %
Density (ASTM D1505)1.10–1.14 g/cm³
Primary ApplicationsMedical, automotive, electronics, food processing, and industrial sealing


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