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

Wacker ELASTOSIL M 4644 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® M 4644 A/B is a two-component addition-curing silicone rubber offering excellent mechanical strength, high transparency, and low compression set. Ideal for medical devices, baby products, and precision molds, it cures rapidly at room temperature or with mild heat, delivering consistent reproducibility and biocompatibility per ISO 10993.
  • wacker elastosil m 4644 a b two component silicone rubber_c7af79b0
  • wacker elastosil m 4644 a b two component silicone rubber_c7af79b0

Features Of Wacker ELASTOSIL M 4644 A B Two-Component Silicone Rubber

  1. High tear strength and excellent elongation at break for demanding dynamic applications.

  2. Fast room-temperature vulcanization (RTV) with balanced pot life and cure speed.

  3. Outstanding thermal stability, maintaining mechanical integrity from –60 °C to +180 °C.

  4. Excellent electrical insulation properties and low compression set.

  5. Biocompatibility tested per ISO 10993–5 and USP Class VI, suitable for medical device encapsulation.

Typical Applications Of Wacker ELASTOSIL M 4644 A B Two-Component Silicone Rubber

  1. Encapsulation and potting of electronic components and sensors.

  2. Sealing and gasketing in automotive powertrain and EV battery modules.

  3. Medical device housings and wearable sensor interfaces.

  4. Industrial prototyping and functional silicone parts via casting or injection molding.

  5. Food-contact compliant seals and components (subject to local regulatory approval).

Specifications Of Wacker ELASTOSIL M 4644 A B Two-Component Silicone Rubber

Chemical TypePlatinum-cured addition-cure silicone rubber
Product FormTwo-component liquid system (Part A + Part B)
Appearance (Mixed)Translucent, viscous liquid
Shore A Hardness (7 days, 23 °C)45 ± 3
Tensile Strength (ISO 37)8.5 MPa (typical)
Elongation at Break (ISO 37)380 % (typical)
Density (23 °C)1.14 g/cm³ (typical)
Primary ApplicationsEncapsulation, sealing, medical device assembly, industrial casting


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

Your Name *

Your Email *

Your Phone

Country

Your Message *