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

Shin-Etsu CHN-LIMS-70A/B Silicone Rubber

Shin-Etsu CHN-LIMS-70A/B is a high-purity, two-part addition-cure liquid silicone rubber designed for precision medical device molding. Featuring low viscosity, excellent biocompatibility (ISO 10993/USP Class VI), and rapid room-temperature cure, it delivers exceptional detail replication and thermal stability. Widely used in catheters, implants, and diagnostic components across global healthcare manufacturing.
  • shin etsu chn lims 70a b silicone rubber_ab3cb86f
  • shin etsu chn lims 70a b silicone rubber_ab3cb86f

Features Of Shin-Etsu CHN-LIMS-70A/B Silicone Rubber

  1. Two-part, addition-cure liquid silicone rubber (LSR) system with excellent processability and low viscosity for precision molding.

  2. High thermal stability and long-term reliability over a wide service temperature range (–50 °C to +200 °C).

  3. Outstanding electrical insulation properties and low compression set for demanding sealing and encapsulation applications.

  4. Excellent biocompatibility compliant with ISO 10993-5 and USP Class VI requirements for medical-grade use.

  5. Fast, controllable cure kinetics enabling high-volume automated production with minimal post-cure requirements.

Typical Applications Of Shin-Etsu CHN-LIMS-70A/B Silicone Rubber

  1. Medical devices including catheters, respiratory masks, and implantable component housings.

  2. Automotive sensors, gaskets, and under-hood sealing components requiring thermal and chemical resistance.

  3. Consumer electronics enclosures, keypads, and waterproof seals for wearables and portable devices.

  4. Industrial fluid handling systems such as diaphragms, valves, and pump components exposed to aggressive media.

Specifications Of Shin-Etsu CHN-LIMS-70A/B Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber
Product FormTwo-component (Part A: base; Part B: catalyst)
AppearanceTranslucent, low-viscosity liquid (Part A); colorless to pale yellow liquid (Part B)
Primary ApplicationsMedical, automotive, electronics, industrial sealing & encapsulation
Key FeaturesLow compression set, high tear strength, excellent flow into fine cavities
BenefitsReduced cycle time, minimal flash, consistent part-to-part reproducibility
Cure Temperature Range110 °C to 180 °C (time-dependent)
Shelf Life (unopened, 25 °C)12 months (Part A), 6 months (Part B)


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