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WACKER has a strong expertise in hydro power since 1914. Attention is now also focusing on innovative concepts for harnessing tidal and wave power. Our technologically advanced products provide forward-looking solutions for industrial users in wave power plants and hydro power plants.

WACKER's in-depth expertise in hydropower dates back to 1914. Now, we are also focusing on innovative concepts for harnessing tidal and wave power. Our high-tech products provide pioneering solutions for industrial designers of wave-power and hydropower generators.

In wave-power generators, ELASTOSIL® Film can be used as an electroactive polymer to harvest energy from the sea. In this application ELASTOSIL® Film serves as a dielectric medium, return spring and carrier for electrodes, ensuring durability over millions of cycles. ELASTOSIL® Film is produced from addition-curing silicone rubber grades, available in thicknesses as low as 20 micrometers. Production takes place under clean-room conditions and yields flawless, homogeneous films of extremely uniform thickness, and all with the positive properties of silicones.


  • Durability over millions of cycles
  • Constant permittivity
  • Good dielectric properties
  • High stretch recovery
  • Permanent elasticity
  • Different thicknesses as low as 20 micrometers
  • Outstanding precision of +/-5%
  • Flexibility at low temperatures
  • High heat resistance
  • Selective gas-permeability

ELASTOSIL® RTV are ready-to-use room-temperature curing silicone rubber grades, optimized for the production of hydropower generators.

ELASTOSIL® RTV are ready-to-use room temperature curing silicone rubber grades, optimal for sealing hydropower generators


  • Potting of stator slot exits
  • Elastic bonding of the coil windings
  • Bonding of insulation caps
  • Thermally conductive potting of stator coils


  • Improved thermal management
  • Fire safety
  • Protection against moisture and environmental impact
  • Electrical insulation
  • Corona shielding and protection