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

Wacker ELASTOSIL N2189 Silicone Rubber

Wacker ELASTOSIL® N2189 is a two-component, addition-cure liquid silicone rubber (LSR) offering excellent mechanical strength, thermal stability up to 200°C, low compression set, and outstanding biocompatibility. Ideal for medical devices, baby care products, and precision molded parts requiring FDA-compliant, platinum-catalyzed silicone performance.
  • wacker elastosil n2189 silicone rubber_0c072074
  • wacker elastosil n2189 silicone rubber_0c072074

Features Of Wacker ELASTOSIL N2189 Silicone Rubber

  1. Platinum-catalyzed addition-cure system for precise, reproducible vulcanization.

  2. Excellent transparency and optical clarity suitable for demanding aesthetic applications.

  3. Low compression set and high elasticity retention after prolonged thermal aging.

  4. Good adhesion to various substrates including plastics and metals without primer.

  5. Biocompatibility tested per ISO 10993-5 and USP Class VI standards.

Typical Applications Of Wacker ELASTOSIL N2189 Silicone Rubber

  1. Medical device components such as tubing, seals, and gaskets.

  2. Optical lenses and light-guiding elements in LED lighting systems.

  3. Food-contact compliant gaskets and sealing profiles for processing equipment.

  4. High-clarity encapsulation for sensors and electronic modules.

  5. Soft-touch overmolding on consumer electronics housings.

Specifications Of Wacker ELASTOSIL N2189 Silicone Rubber

Chemical TypePlatinum-cured liquid silicone rubber (LSR)
Product FormTwo-component (Part A + Part B), pourable liquid
AppearanceTransparent, viscous liquid
Shore A Hardness (cured, 7 d @ 23 °C)20 ± 2
Tensile Strength (cured, ISO 37)5.5 MPa (min)
Elongation at Break (cured, ISO 37)550 % (min)
Processing Temperature Range25–180 °C (injection molding)
Primary ApplicationsMedical, optical, food-contact, and consumer electronics


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