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

Wacker ELASTOSIL SC 870 Silicone Rubber

Wacker ELASTOSIL SC 870 is a two-component, addition-curing liquid silicone rubber offering excellent flowability, low viscosity, and outstanding thermal stability. Ideal for precision casting, encapsulation, and medical device molding, it complies with ISO 10993 and USP Class VI standards. Features rapid cure, high transparency, and superior mechanical properties post-vulcanization.
  • wacker elastosil sc 870 silicone rubber_eefa727c
  • wacker elastosil sc 870 silicone rubber_eefa727c

Features Of Wacker ELASTOSIL SC 870 Silicone Rubber

  1. Platinum-catalyzed addition-cure silicone rubber offering excellent thermal stability and long-term aging resistance.

  2. Low compression set and high elasticity for reliable sealing performance under dynamic mechanical stress.

  3. Excellent electrical insulation properties across wide temperature and frequency ranges.

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

  5. Non-corrosive, low-volatility formulation compliant with RoHS and REACH requirements.

Typical Applications Of Wacker ELASTOSIL SC 870 Silicone Rubber

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

  2. Encapsulation of sensitive electronic components and sensors for industrial automation.

  3. Dynamic seals for pneumatic and hydraulic systems operating at elevated temperatures.

  4. Insulating parts in LED lighting housings and photovoltaic junction boxes.

  5. Medical device components requiring biocompatibility (ISO 10993 tested) and sterilization resistance.

Specifications Of Wacker ELASTOSIL SC 870 Silicone Rubber

Chemical TypePlatinum-catalyzed addition-cure liquid silicone rubber (LSR)
Product FormTwo-component liquid system (Part A + Part B)
AppearanceTranslucent, viscous liquid (Part A); translucent, low-viscosity liquid (Part B)
Shore A Hardness (cured, 7 d @ 23 °C)65 ± 3
Tensile Strength (cured, ISO 37)8.5 MPa (typ.)
Elongation at Break (cured, ISO 37)220 % (typ.)
Operating Temperature Range−60 °C to +180 °C (continuous)
Primary ApplicationsHigh-reliability sealing, encapsulation, and insulating components


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