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

Wacker ELASTOSIL M 4615 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® M 4615 A/B is a two-component addition-curing silicone rubber offering excellent mechanical strength, thermal stability up to 200°C, and low compression set. Ideal for precision molding of seals, gaskets, and medical components. Features fast demolding, high tear resistance, and biocompatibility per ISO 10993. Supplied as Part A (base) and Part B (catalyst) with 1:1 mix ratio.
  • wacker elastosil m 4615 a b two component silicone rubber_729c14c9
  • wacker elastosil m 4615 a b two component silicone rubber_729c14c9

Features Of Wacker ELASTOSIL M 4615 A B Two-Component Silicone Rubber

  1. High tear strength and excellent elongation at break for demanding mechanical performance.

  2. Fast room-temperature curing with balanced pot life and demold time for efficient production cycles.

  3. Excellent adhesion to various substrates including metals, plastics, and primed surfaces without additional bonding agents.

  4. Outstanding resistance to aging, UV radiation, and extreme temperatures (–60 °C to +180 °C).

  5. Low compression set and high resilience for long-term sealing and dynamic gasket applications.

Typical Applications Of Wacker ELASTOSIL M 4615 A B Two-Component Silicone Rubber

  1. Automotive sealing systems including door, hood, and trunk seals.

  2. Industrial gaskets and vibration-damping components in machinery and equipment.

  3. Electrical insulation parts and protective housings for sensors and connectors.

  4. Medical device enclosures requiring biocompatibility-compliant silicone formulations.

  5. Custom molded parts for white goods and HVAC systems requiring weather resistance.

Specifications Of Wacker ELASTOSIL M 4615 A B Two-Component Silicone Rubber

Chemical TypePlatinum-cured addition-cure liquid silicone rubber (LSR)
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
Curing Temperature RangeRoom temperature (23 °C) or elevated temperature (e.g., 80–120 °C)
Shore A Hardness (7 days, 23 °C)45 ± 3
Tensile Strength (ISO 37)≥ 7.0 MPa
Elongation at Break (ISO 37)≥ 250 %


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