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

Wacker ELASTOSIL M 4641 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® M 4641 A/B is a platinum-cured two-component addition-cure silicone rubber offering excellent mechanical strength thermal stability and low compression set ideal for precision molding sealing and gasketing in demanding industrial applications.
  • wacker elastosil m 4641 a b two component silicone rubber_9aba22f8
  • wacker elastosil m 4641 a b two component silicone rubber_9aba22f8

Features Of Wacker ELASTOSIL M 4641 A B Two-Component Silicone Rubber

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

  2. Fast room-temperature curing (RTV-2) with balanced pot life and demold time.

  3. Outstanding thermal stability from –60 °C to +180 °C after full cure.

  4. Low compression set and superior resilience for long-term sealing performance.

  5. Excellent electrical insulation properties and UL 94 V-0 flammability rating.

Typical Applications Of Wacker ELASTOSIL M 4641 A B Two-Component Silicone Rubber

  1. Automotive gaskets and vibration-damping mounts.

  2. Electrical encapsulation and potting of power modules and sensors.

  3. Medical device housings requiring biocompatibility (ISO 10993-tested).

  4. Industrial sealing systems for HVAC, pumps, and fluid handling equipment.

  5. Custom molded components in white goods and precision engineering.

Specifications Of Wacker ELASTOSIL M 4641 A B Two-Component Silicone Rubber

Chemical TypePlatinum-cured addition-cure silicone rubber
Product FormTwo-component liquid system (Part A: base, Part B: catalyst)
Appearance (uncured)Part A: translucent viscous liquid; Part B: translucent low-viscosity liquid
Mixing Ratio (A:B)10:1 by weight
Cure MechanismRoom temperature vulcanization (RTV-2), accelerated by heat
Shore A Hardness (7 days @ 23 °C)40 ± 3
Tensile Strength (ASTM D412)≥ 6.0 MPa
Elongation at Break (ASTM D412)≥ 350 %


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

Your Name *

Your Email *

Your Phone

Country

Your Message *