Evonik

Protectosil WS 328

Solvent-free emulsion for the hydrophobizing impregnation of mineral substrates

Protectosil WS 328 is a solvent-free emulsion based on reactive organomodified siloxanes for the hydrophobizing impregnation of absorbent, mineral substrates with excellent beading properties.

Key Features

  • 50% active ingredient
  • Density (25 °C) approx. 1.0 g/cm³
  • Viscosity (ISO cup/3 mm/23 °C) 40 - 55 sec
  • Almost  free of volatile organic compounds (VOC)
  • Milky white emulsion based on organomodified siloxanes
  • Almost free of volatile organic compounds (VOC)
  • Diluteable with water
  • Hydrophobizing impregnation of neutral, mineral substrates
  • Efflorescence prevention
  • Penetrates very good in porous, mineral substrates
  • Invisible and water vapor permeable protection
  • Reduction of water uptake and water soluble pollutants

Recommended Applications

  • Treatment for brick, natural stone and facades
  • Injected damp-proof course (DPC, horizontal barrier) for brick, stone and concrete walls