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

Wacker ELASTOSIL M 4600 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® M 4600 A/B is a two-component addition-curing liquid silicone rubber offering excellent flowability, low viscosity, and high tear strength. Ideal for precision casting, medical device molding, and intricate prototypes, it cures rapidly at room or elevated temperatures with minimal shrinkage and outstanding biocompatibility per ISO 10993.
  • wacker elastosil m 4600 a b two component silicone rubber_c34fd1a0
  • wacker elastosil m 4600 a b two component silicone rubber_c34fd1a0

Features Of Wacker ELASTOSIL M 4600 A B Two-Component Silicone Rubber

  1. Excellent mechanical properties including high tear strength and elongation at break.

  2. Fast room-temperature vulcanization (RTV) with low mixed viscosity for easy processing and air bubble release.

  3. Outstanding thermal stability and long-term performance across –60 °C to +180 °C.

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

  5. Meets ISO 10993-5 cytotoxicity requirements for biocompatibility in non-implantable medical applications.

Typical Applications Of Wacker ELASTOSIL M 4600 A B Two-Component Silicone Rubber

  1. Medical device components such as housings, gaskets, and seals for diagnostic equipment.

  2. Automotive sensors and electronic encapsulation requiring vibration damping and environmental protection.

  3. Consumer electronics interfaces, keypads, and soft-touch overmolding parts.

  4. Industrial sealing and bonding solutions for precision instruments and optical assemblies.

  5. Custom molded parts for white goods and home appliances demanding durability and temperature resistance.

Specifications Of Wacker ELASTOSIL M 4600 A B Two-Component Silicone Rubber

Chemical TypePlatinum-catalyzed addition-curing silicone rubber
Product FormTwo-component liquid system (Part A: base, Part B: catalyst)
AppearancePart A: translucent, viscous liquid; Part B: translucent, low-viscosity liquid
Mixing Ratio (A:B)10:1 by weight
Cure Time (23 °C / 50% RH)Surface tack-free in ~30 minutes; full cure in 24 hours
Hardness (Shore A)~40–45 after full cure
Tensile Strength≥ 7.0 MPa
Elongation at Break≥ 250%


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