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

Wacker ELASTOSIL SOLAR 1109 BLACK Silicone Rubber

Wacker ELASTOSIL SOLAR 1109 BLACK is a high-performance platinum-cured liquid silicone rubber designed for photovoltaic module encapsulation. It offers excellent UV resistance thermal stability and adhesion to glass/EVA. Ideal for solar panel edge sealing and junction box potting ensuring long-term reliability in harsh outdoor environments.
  • wacker elastosil solar 1109 black silicone rubber_4d49c8f9
  • wacker elastosil solar 1109 black silicone rubber_4d49c8f9

Features Of Wacker ELASTOSIL SOLAR 1109 BLACK Silicone Rubber

  1. High UV and weather resistance for long-term outdoor performance in solar applications.

  2. Excellent thermal stability across –50 °C to +180 °C operating range.

  3. Low compression set ensuring reliable sealing and gasket integrity over time.

  4. Platinum-cured, addition-type formulation with no by-products during vulcanization.

  5. Black pigmentation optimized for solar absorptance and minimal reflectivity.

Typical Applications Of Wacker ELASTOSIL SOLAR 1109 BLACK Silicone Rubber

  1. Sealing and encapsulation of photovoltaic (PV) module frames and junction boxes.

  2. Gaskets for solar inverters and energy storage enclosures exposed to outdoor conditions.

  3. Mounting components and vibration-damping pads in solar tracking systems.

  4. Protective boots and cable entry seals in solar power generation infrastructure.

Specifications Of Wacker ELASTOSIL SOLAR 1109 BLACK Silicone Rubber

Chemical TypePlatinum-cured addition-cure silicone rubber
Product FormTwo-component liquid (Part A: base, Part B: catalyst)
AppearanceOpaque black viscous liquid
Cure SystemRoom temperature or elevated temperature vulcanization
Shore A Hardness (ASTM D2240)~55–60
Tensile Strength (ASTM D412)≥ 7.0 MPa
Elongation at Break (ASTM D412)≥ 350 %
Volume Resistivity (IEC 60093)> 1 × 10¹⁴ Ω·cm


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