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

Shin-Etsu CHN-LIMS-25A/B Silicone Rubber

Shin-Etsu CHN-LIMS-25A/B is a two-part addition-cure liquid silicone rubber from Shin-Etsu’s CHN-LIMS series, offering excellent biocompatibility, low viscosity, rapid curing, and high transparency—ideal for medical device encapsulation, soft tooling, and precision molding applications.
  • shin etsu chn lims 25a b silicone rubber_f602c634
  • shin etsu chn lims 25a b silicone rubber_f602c634

Features Of Shin-Etsu CHN-LIMS-25A/B Silicone Rubber

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

  2. Ultra-low shrinkage and high dimensional stability after curing, ensuring tight tolerance replication in precision parts.

  3. Exceptional biocompatibility and compliance with ISO 10993-5 and USP Class VI standards for medical-grade applications.

  4. Fast room-temperature or elevated-temperature cure profile, enabling high-throughput production without post-bake requirements.

  5. Outstanding thermal stability (-60 °C to +200 °C continuous use) and resistance to aging, ozone, and UV exposure.

Typical Applications Of Shin-Etsu CHN-LIMS-25A/B Silicone Rubber

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

  2. Pharmaceutical primary packaging such as stoppers, plungers, and syringe components.

  3. Automotive fluid-handling parts including coolant hoses, turbocharger seals, and EV battery module gaskets.

  4. Consumer electronics encapsulation for waterproof connectors, wearable device interfaces, and flexible circuit protection.

  5. Industrial precision molds and soft tooling for low-volume prototyping of elastomeric parts.

Specifications Of Shin-Etsu CHN-LIMS-25A/B Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure silicone rubber
Product FormTwo-component (Part A: base polymer; Part B: crosslinker/catalyst)
Appearance (Part A)Translucent, low-viscosity liquid
Appearance (Part B)Translucent, low-viscosity liquid
Mixing Ratio (A:B by weight)1:1
Cure ModeRoom temperature or heat-assisted (e.g., 80 °C for 10 min)
Shore A Hardness (cured)25 ± 2
Primary ApplicationsMedical, pharmaceutical, automotive, and electronics sealing/encapsulation


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