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

Wacker ELASTOSIL Solar 3210 A B Two-Component Silicone Rubber

Wacker ELASTOSIL® Solar 3210 A/B is a two-component addition-curing silicone rubber engineered for photovoltaic encapsulation. It offers exceptional UV resistance thermal stability and low ionic impurity—critical for solar module longevity. Fast curing high transparency and excellent adhesion to glass/EVA ensure reliable performance in harsh outdoor environments.
  • wacker elastosil solar 3210 a b two component silicone rubber_c4449644
  • wacker elastosil solar 3210 a b two component silicone rubber_c4449644

Features Of Wacker ELASTOSIL Solar 3210 A B Two-Component Silicone Rubber

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

  2. Low compression set ensures reliable sealing and mechanical integrity over extended service life.

  3. High thermal stability with continuous operation capability up to 180 °C.

  4. Platinum-catalyzed addition cure system offering precise, reproducible processing and minimal by-products.

  5. Good adhesion to common substrates including glass, aluminum, and engineered plastics without primers.

Typical Applications Of Wacker ELASTOSIL Solar 3210 A B Two-Component Silicone Rubber

  1. Encapsulation and potting of photovoltaic (PV) module junction boxes.

  2. Sealing and gasketing of solar inverters and power electronics housings.

  3. Protective coatings for solar sensor housings and mounting components.

  4. Structural bonding and sealing in concentrated solar power (CSP) systems.

  5. Insulating layers for high-voltage DC connectors in solar farms.

Specifications Of Wacker ELASTOSIL Solar 3210 A B Two-Component Silicone Rubber

Chemical TypePlatinum-catalyzed addition-curing silicone rubber
Product FormTwo-component liquid system (Part A + Part B)
Appearance (Mixed)Translucent, viscous liquid
Mixing Ratio (A:B by weight)1:1
Cure Temperature Range25–150 °C
Shore A Hardness (7 days @ 23 °C)55 ± 3
Tensile Strength (ASTM D412)8.5 MPa
Elongation at Break (ASTM D412)280 %


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