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

Wacker ELASTOSIL P 7633 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® P 7633 A/B is a platinum-cured two-component addition-curing silicone rubber offering excellent mechanical strength, thermal stability up to 180°C, low compression set, and outstanding electrical insulation—ideal for demanding industrial molding, encapsulation, and sealing applications.
  • wacker elastosil p 7633 a b two component silicone rubber_bee72f90
  • wacker elastosil p 7633 a b two component silicone rubber_bee72f90

Features Of Wacker ELASTOSIL P 7633 A B Two-Component Silicone Rubber

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

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

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

  4. Low compression set ensuring long-term sealing integrity under continuous load.

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

Typical Applications Of Wacker ELASTOSIL P 7633 A B Two-Component Silicone Rubber

  1. Automotive engine and transmission gaskets requiring high thermal and mechanical stability.

  2. Industrial encapsulation of sensitive electronic components and power modules.

  3. Sealing systems for HVAC, refrigeration, and fuel handling equipment.

  4. Dynamic seals in pneumatic and hydraulic actuators operating under cyclic stress.

  5. Medical device housings and fluid-contact components meeting ISO 10993 biocompatibility requirements.

Specifications Of Wacker ELASTOSIL P 7633 A B Two-Component Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-component (A + B) liquid system, supplied separately
Appearance (Mixed)Translucent, viscous paste
Mixing Ratio (A:B by weight)1:1
Cure Temperature RangeRoom temperature (23 °C) to elevated temperature (100–150 °C)
Shore A Hardness (Cured)65 ± 3
Tensile Strength (Cured)≈ 8.5 MPa
Elongation at Break (Cured)≈ 350 %


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